Publikationer från Malmö universitet
Ändra sökning
Avgränsa sökresultatet
12 1 - 50 av 61
RefereraExporteraLänk till träfflistan
Permanent länk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Träffar per sida
  • 5
  • 10
  • 20
  • 50
  • 100
  • 250
Sortering
  • Standard (Relevans)
  • Författare A-Ö
  • Författare Ö-A
  • Titel A-Ö
  • Titel Ö-A
  • Publikationstyp A-Ö
  • Publikationstyp Ö-A
  • Äldst först
  • Nyast först
  • Skapad (Äldst först)
  • Skapad (Nyast först)
  • Senast uppdaterad (Äldst först)
  • Senast uppdaterad (Nyast först)
  • Disputationsdatum (tidigaste först)
  • Disputationsdatum (senaste först)
  • Standard (Relevans)
  • Författare A-Ö
  • Författare Ö-A
  • Titel A-Ö
  • Titel Ö-A
  • Publikationstyp A-Ö
  • Publikationstyp Ö-A
  • Äldst först
  • Nyast först
  • Skapad (Äldst först)
  • Skapad (Nyast först)
  • Senast uppdaterad (Äldst först)
  • Senast uppdaterad (Nyast först)
  • Disputationsdatum (tidigaste först)
  • Disputationsdatum (senaste först)
Markera
Maxantalet träffar du kan exportera från sökgränssnittet är 250. Vid större uttag använd dig av utsökningar.
  • 1. Ahmed, Naveen
    et al.
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Anca, Catrina I.
    Mustafa, Hamid
    Alstergren, Per
    Malmö högskola, Odontologiska fakulteten (OD).
    Tumor necrosis factor mediates temporomandibular joint bone tissue resorption in rheumatoid arthritis2015Ingår i: Acta Odontologica Scandinavica, ISSN 0001-6357, E-ISSN 1502-3850, Vol. 73, nr 3, s. 232-240Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    OBJECTIVE: To investigate if TNF, IL-1 or their endogenous controls, in relation to ACPA, are associated with radiological signs of ongoing temporomandibular joint (TMJ) bone tissue resorption and disc displacement in RA patients. METHODS: Twenty-two consecutive outpatients with TMJ of RA were included. Systemic inflammatory activity was assessed by DAS28. The number of painful regions in the body and ESR, CRP, RF and ACPA were analyzed. TMJ synovial fluid and blood samples were obtained and analyzed for TNF, TNFsRII, IL-1ra, IL-1sRII and ACPA. The ratios between the mediators and their endogenous control receptors were used in the statistical analysis. Magnetic resonance imaging was performed in closed- and open-mouth positions and evaluated regarding disc position and presence of condylar and temporal erosions of the TMJ. RESULTS: A high TNF level in relation to TNFsRII in TMJ synovial fluid correlated to the degree of TMJ condylar erosion. A high IL-1ra level in relation to TNF in TMJ synovial fluid was also correlated to the degree of TMJ condylar erosion. The total degree of TMJ condylar erosion was correlated with the number of painful regions. CONCLUSION: This study indicates that TNF in TMJ synovial fluid mediates TMJ cartilage and bone tissue resorption in RA. The study also suggests that the degree of endogenous cytokine control is of importance for development of bone tissue destruction.

  • 2. Bakke, Merete
    et al.
    Eriksson, Lars
    Malmö högskola, Odontologiska fakulteten (OD).
    Thorsen, Niels Max
    Sewerin, Ib
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Wagner, Aase
    Modified condylotomy versus conventional conservative treatment in painful reciprocal clicking-a preliminary prospective study in eight patients2008Ingår i: Clinical Oral Investigations, ISSN 1432-6981, E-ISSN 1436-3771, Vol. 12, nr 4, s. 353-359Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Modified condylotomy may be relevant in severe painful reciprocal clicking of the temporomandibular joint (TMJ) where conservative treatment is insufficient. The effect of the modified condylotomy was analyzed and compared with conventional nonsurgical treatment in a randomized pilot study of eight patients, 19-44 years of age, with severe painful reciprocal clicking. Before and after treatment, assessments were performed by subjective reports, clinical recordings, and blinded evaluations of radiography and magnetic resonance imaging (MRI). Based on the clinical evaluations before treatment, all conditions were disc displacements with reduction and arthralgia (Research diagnostic criteria for temporomandibular disorders), but based on MRI, one patient had disc displacement without reduction and another had normal disc position. The treatment effect was significantly better and the disorders were significantly more reduced with condylotomy than with conventional nonsurgical treatment (P < 0.05, Mann-Whitney U test). In the surgical group, the clicking and locking had disappeared, the pain during function was significantly reduced (P < 0.05, Friedman ANOVA), and in two patients the disc position was normalized. The clicking still persisted in the nonsurgical patients and the disc position was unchanged. Our conclusion is that modified condylotomy is a promising option to reduce symptoms and signs in severe painful reciprocal clicking.

  • 3. Bergentholtz, Gunnar
    et al.
    Axelsson, Susanna
    Davidson, Thomas
    Frisk, Fredrik
    Hakeberg, Magnus
    Helgesson, Gert
    Håkanson, Kickan
    Kedebring, Therese
    Kvist, Thomas
    Lindblom, Jonas
    Mejàre, Ingegerd
    Malmö högskola, Odontologiska fakulteten (OD).
    Norlund, Anders
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Portenier, Isabelle
    Sandberg, Hans
    Tranæus, Sofia
    Rotfyllning: en systematisk litteraturöversikt2010Rapport (Övrigt vetenskapligt)
    Ladda ner fulltext (pdf)
    fulltext
  • 4.
    Bondemark, Lars
    et al.
    Malmö högskola, Odontologiska fakulteten (OD).
    List, Thomas
    Malmö högskola, Odontologiska fakulteten (OD).
    Ekberg, EwaCarin
    Malmö högskola, Odontologiska fakulteten (OD).
    Eriksson, Lars
    Malmö högskola, Odontologiska fakulteten (OD).
    Nilner, Maria
    Malmö högskola, Odontologiska fakulteten (OD).
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Petersson, Kerstin
    Malmö högskola, Odontologiska fakulteten (OD).
    Tegelberg, Åke
    Malmö högskola, Odontologiska fakulteten (OD).
    Wolf, Eva
    Malmö högskola, Odontologiska fakulteten (OD).
    Funktionsstörningar och smärta2008Ingår i: Tandläkartidningen, ISSN 0039-6982, Vol. 100, nr 9-10, s. 64-68Artikel i tidskrift (Övrig (populärvetenskap, debatt, mm))
    Abstract [sv]

    Orofaciala funktionsstörningar och smärta är en sammanfattning av kliniska problem och sjukdomar som involverar bett, käkar, tuggmuskulatur, käkleder och omgivande strukturer. Orsakerna är oftast multifaktoriella för de barn, ungdomar och vuxna som drabbas.

  • 5.
    Ekberg, Ewacarin
    et al.
    Malmö högskola, Odontologiska fakulteten (OD).
    Hansson, Lars-Göran
    List, Thomas
    Malmö högskola, Odontologiska fakulteten (OD).
    Eriksson, Lars
    Malmö högskola, Odontologiska fakulteten (OD).
    Sahlström, Lotta
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Can MRI Observations Predict Treatment Outcome of Lavage in Patients with Painful TMJ Disc Displacement without Reduction?2015Ingår i: Journal of Oral & Maxillofacial Research, ISSN 2029-283X, E-ISSN 2029-283X, Vol. 30, nr 1, artikel-id e5Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    OBJECTIVES: The purpose of this study was to examine magnetic resonance imaging findings in patients with painful disc displacement without reduction of the temporomandibular joint to determine whether the findings were able to predict treatment outcome of lavage and a control group treated with local anaesthesia without lavage in a short-term: 3-month perspective. MATERIAL AND METHODS: Bilateral magnetic resonance images were taken of 37 patients with the clinical diagnosis of painful disc displacement without reduction. Twenty-three patients received unilateral extra-articular local anaesthetics and 14 unilateral lavage and extra-articular local anaesthetics. The primary treatment outcome defining success was reduction in pain intensity of at least 30% during jaw movement at the 3-month follow-up. RESULTS: Bilateral disc displacement was found in 30 patients. In 31 patients the disc on the treated side was deformed, and bilaterally in 19 patients. Osteoarthritis was observed in 28 patients, and 13 patients had bilateral changes. Thirty patients responded to treatment and 7 did not, with no difference between the two treated groups. In neither the treated nor the contralateral temporomandibular joint did treatment outcome depend on disc diagnosis, disc shape, joint effusion, or osseous diagnoses. Magnetic resonance imaging findings of disc position, disc shape, joint effusion or osseous diagnosis on the treated or contralateral side did not give information of treatment outcome. CONCLUSIONS: Magnetic resonance imaging findings could not predict treatment outcome in patients treated with either local anaesthetics or local anaesthetics and lavage.

    Ladda ner fulltext (pdf)
    FULLTEXT01
  • 6. Englesson Sahlström, Lotta
    et al.
    Ekberg, EwaCarin
    Malmö högskola, Odontologiska fakulteten (OD).
    List, Thomas
    Malmö högskola, Odontologiska fakulteten (OD).
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Eriksson, Lars
    Malmö högskola, Odontologiska fakulteten (OD).
    Lavage Questionable in Treatment of Painful Reduced Mouth Opening (Stockholm)2008Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    Objective: To compare treatment with local anaesthetics and local anaesthetics in combination with lavage in patients with temporomandibular joint (TMJ) pain and reduced mouth opening in a randomized controlled trial. Material and methods: Forty-one women and four men (mean age of 35 years) participated. All patients had had TMJ pain for more than 3 months, had reduced mouth opening capacity, and had non-reducing disc displacement confirmed by magnetic resonance imaging. The patients were randomized to treatment with extra-articular local anaesthetic alone (control) or with extra-articular local anaesthetic in combination with lavage (treatment). All patients were examined at baseline and at 1 and 3 months by an examiner blind to treatment. Successful treatment was determined as 30% or more pain reduction on a 100-mm analog scale (VAS). Results: At baseline, mean pain intensity (VAS) of the TMJ during mandibular movements was rated 58 among the controls and 61 in the treatment group. At the 3 months follow-up, treatment was considered successful in 76% of the controls and 50% of the treatment group. Mouth opening capacity was 34 mm and 33 mm at baseline and 43mm and 38 mm after 3 months among the controls and in the treatment group, respectively. These differences between groups in pain intensity (VAS), successful treatment outcome (≥ 30%), and mouth opening capacity (mm) were non-significant between groups. Conclusion: Use of lavage to supplement extra-articular local anesthetic treatment of painful reduced mouth opening at non-reducing dics does not appear to improve treatment outcome. only.

  • 7. Englesson-Sahlström, Lotta
    et al.
    Ekberg, EwaCarin
    Malmö högskola, Odontologiska fakulteten (OD).
    List, Thomas
    Malmö högskola, Odontologiska fakulteten (OD).
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Eriksson, Lars
    Malmö högskola, Odontologiska fakulteten (OD).
    Lavage question in treatment of painful reduced mouth opening capacity2008Ingår i: Journal of Cranio-Maxillofacial Surgery, ISSN 1010-5182, E-ISSN 1878-4119, Vol. 36, nr Suppl 1, s. 162-163Artikel i tidskrift (Övrigt vetenskapligt)
    Abstract [en]

    OBJECTIVES: To compare treatment with local anaesthetics and local anaesthetics and lavage in patients with temporomandibular joint (TMJ) pain and reduced mouth opening in a randomized controlled trial. METHODS: Forty-one women and four men (mean age 35 years) participated. All patients had had TMJ pain för more than 3 months, had reduced mouth opening capacity, and had non-reducin disc displacement confirmed by magnetic resonance imaging. The patient were randomized to treatment with extra-articular local anaesthetics alone (control) or with extra-articular local anaesthetics and lavage (treatment). All patients were examined at basline and at 1 and 3 months by an examiner blind to treatment. Successful treatment was determined as 30% or more pain reduction on a 100-mm visual analog scale (VAS). RESULTS: At baseline, mean pain intensity (VAS) on movement of the TMJ was 58 among the controls and 61 in the treatment group. At the 3-month folow-up, treatment was considered succesful in 76% of the controls and 50% of the treatment group. Mouth opening capacity without assistance was 34 mm and 33 mm at baseline and 43 mm and 38 mm after 3 months among the controls and in the treatment group, respectively. These differences between groups in median pain intesity, successful treatment outcome, and mouth opening capacity with assistance were nonsignificant. CONLUSIONS: Use of lavage to supplement extra-articular local anaesthetic treatment of painful reduced mouth opening at non-reducing discs does not appear to improve treatment outcome.

  • 8. Eskafi, Mahmoud
    et al.
    Cline, Charles
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Israelsson, Bo
    Nilner, Maria
    Malmö högskola, Odontologiska fakulteten (OD).
    The Effect of Mandibular Advancement Device on Pharyngeal Airway Dimension in Patients with Congestive Heart Failure Treated for Sleep Apnea2004Ingår i: Swedish Dental Journal, ISSN 0347-9994, Vol. 28, nr 1, s. 1-9Artikel i tidskrift (Övrigt vetenskapligt)
    Abstract [en]

    Continues positive airway pressure (CPAP) is recommended for treatment of sleep apnoea (SA) in patients with congestive heart failure (CHF) but is not easily tolerated resulting in poor patient compliance. Mandibular advancement device (MAD) is designed to inhibit pharyn-geal airway (PAW) obstruction and may be a valuable alternative. It has been proposed that MAD exerts its effect by increasing PAW dimensions. This has not, however, been clearly demonstrated. The aim of this study was to examine the effect of MAD on PAW dimensions and SA in patients with CHF. Seventeen CHF-patients with mild to moderate heart failure, aged 68 +/- 6 years, (mean +/- SD), range 54-75 years, with sleep apnoea-hypopnea index (AHI) > or = 10 were evaluated. PAW dimensions were studied with and without the MAD, using lateral radiographs in supine position. Nocturnal breathing patterns were studied using a portable polysomnographic device during a single night with and without MAD. A reduction of AHI > or = 30% (arbitrary level) for each individual was regarded as a successful treatment. Mean AHI was reduced from 25.1 +/- 9.4 to 14.7 +/- 9.7 (p = 0.003). The PAW increased in its inferior section in 13 patients (p = 0.0001). AHI decreased > or = 30% in 9 patients (p = 0.003) of whom 8 showed increased PAW dimensions. Reduction of AHI was not significantly related to increased PAW dimensions. In conclusion MAD increased PAW dimensions and reduced SA in patients with CHF. The results may indicate that MAD reduces SA by other mechanism than increasing PAW dimensions.

  • 9. Frisk, Fredrik
    et al.
    Kvist, Thomas
    Axelsson, Susanna
    Bergenholz, Gunnar
    Davidson, Thomas
    Mejàre, Ingegerd
    Norlund, Anders
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Sandberg, Hans
    Tranaeus, Sofia
    Hakeberg, Magnus
    Pulp exposures in adults: choice of treatment among Swedish dentists2013Ingår i: Swedish Dental Journal, ISSN 0347-9994, Vol. 37, nr 3, s. 153-160Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This study comprises a survey of Swedish dentists'treatment preferences in cases of carious exposure of the dental pulp in adults.The survey was conducted as part of a comprehensive report on methods of diagnosis and treatment in endodontics, published in 2010 by the Swedish Council on Health Technology Assessment. A questionnaire was mailed to a random subsample of 2012 dental offices where one dentist at each office was requested to answer all questions. Each questionnaire contained one of three sets of questions about endodontic practice routines.Thus around one-third of the subsample received case-specific questions about treating carious exposure. Only general practitioners aged below 70 years were included.The final study sample comprised 412 participants.The dentists were presented with two case scenarios. In Case 1 a 22-year old patient had a deep carious lesion in tooth 36 and in Case 2 a 50-year old patient had a deep carious lesion in tooth 14.The participants were asked to nominate their treatment of choice: pulp capping, partial pulpotomy or pulpectomy. For Case 1, 17 per cent of the respondents selected pulpectomy; the corresponding rate for Case 2 was 47 per cent. Female gender and age group 25-49 years were predictive of selection of less invasive treatment options. However, according to recent guidelines (2011) from the National Board of Health and Wellfare, Swedish dentists are recommended to elect pulpectomy prior to pulp capping/partial pulpotomy when confronted with a tooth having a cariously exposed pulp in adults.

  • 10.
    Hellén-Halme, Kristina
    et al.
    Malmö högskola, Odontologiska fakulteten (OD).
    Hollender, Lars
    Janda, Martin
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Web-based calibration of observers using MRI of the temporomandibular joint2012Ingår i: Dento-Maxillo-Facial Radiology, ISSN 0250-832X, E-ISSN 1476-542X, Vol. 41, nr 8, s. 656-661Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Objectives Research diagnostic criteria for temporomandibular disorders (RDC/TMDs) were proposed in 1992 with the aim of standardizing and testing methods for diagnosing TMDs. RDC/TMDs have so far been lacking standardized methods for imaging and criteria for imaging diagnosis of disorders of the temporomandibular joint (TMJ). Criteria for disorders of the TMJ have recently been proposed for MRI. The aim of this study was to publish MR images of the TMJ on the web and to test the agreement of five observers using the criteria. Methods 20 cases of MRI of the TMJ were published on the web together with the criteria. The MR images were taken in closed and open mouth positions, and sagittal and coronal views. Five observers diagnosed disc position, disc shape, joint effusion and loose calcified bodies in the TMJ. Results In all cases except one, three or more observers agreed upon the diagnosis. All agreed on whether a loose calcified body was present or not. The second best agreement was obtained for disc position in the sagittal view, where all observers agreed in 16 of the 20 cases. For disc position in the coronal view and the evaluation of the disc shape, observer agreement was lower. Conclusion Criteria were useful in order to standardize and simplify evaluation and thereby probably increase the diagnostic outcome among different observers for MRI of the TMJ. We recommend that the criteria be used internationally to facilitate comparisons between different studies.

    Ladda ner fulltext (pdf)
    FULLTEXT01
  • 11.
    Hellén-Halme, Kristina
    et al.
    Malmö högskola, Odontologiska fakulteten (OD).
    Johansson, Per-Magnus
    Håkansson, Jan
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Image Quality of Digital and Film Radiographs in Applications Sent to the Dental Insurance Office in Sweden for Treatment Approval2004Ingår i: Swedish Dental Journal, ISSN 0347-9994, Vol. 28, nr 2, s. 77-84Artikel i tidskrift (Övrigt vetenskapligt)
    Abstract [en]

    In July 2002, a new dental insurance program was introduced in Sweden. For all patients over 65 years, prior approval for all prosthetic work would need to be obtained from the Dental Insurance Office. From October to December 2002, 540 cases were randomly selected for evaluation from the 14,624 applications that had been sent from throughout Sweden to the Dental Insurance Office in Lund. Our aims were to appraise the quality of the radiographic examinations and to compare the quality of the digital with the film (X-ray film) radiographs. The radiographic examinations were evaluated as a whole in relation to the proposed treatment and in detail using specific criteria such as density, contrast, unsharpness, angulation, and receptor position error. The quality variables were evaluated as acceptable or unacceptable. A total of 4,687 intra-oral and 206 panoramic radiographs were evaluated. Thirteen per cent of the intra-oral radiographs and 9% of the panoramic radiographs were taken with a digital technique. Most of the digital radiographs—-70% of the intra-oral and 61% of the panoramic radiographs-—were submitted on microdisk. Twentyeight per cent of the intra-oral digital radiographs, however, were submitted on paper. The radiographic quality in 150 cases (28%) were found to be unacceptable for assessment of the proposed treatment. The most common error-—both in digital and X-ray film radiographs-—was in receptor position. Significantly more errors were found in the intra-oral digital radiographs compared to the radiographs taken with X-ray film. Most of the errors in the digital radiographs were detected in the paper copies. In conclusion, it is possible to improve the radiographic quality in applications for treatment approval, and the dentists had more difficulties with the digital technique than with X-ray film.

  • 12.
    Hellén-Halme, Kristina
    et al.
    Malmö högskola, Odontologiska fakulteten (OD).
    Nilsson, M
    Malmö högskola, Odontologiska fakulteten (OD).
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Digital radiography in general dental practice: An investigation of the display monitor's effect on image quality2006Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    Objectives: The aim of this study was to investigate the quality of radiographs acquired with digital technique in general dental practices, especially regarding factors related to the display monitor. A further aim was to evaluate how the enhancement programs were used by the dentists. Methods: Nine-teen general dental practitioners were visited in their clinics. Ambient light (illuminance) in the room was measured. Different technical parameters of the display monitor were noted. Test images and two phantoms, one low-contrast phantom and one line-pair resolution test phantom were used to control the digital system. The use of the enhancement program available in their equipment was evaluated by noting how the dentist used the program on a checking list which different functions were used. Results: The average illuminance in the operating room was 668 lux. All monitors were colour. The study showed that the amount of “light percentage” set initially in the monitor had to be decreased with in average 17% to optimise the results of the test images. The contrast factor was decreased with in average 10%. The general dental practitioners mostly used the possibility to alter brightness and contrast of the different phantom images to obtain the subjectively best image Conclusion: There is a need to improve the knowledge how to handle the digital equipment in general dental practice. A monitor with good quality has to be a given priority as well as ambient light conditions when you read radiographs. There is a need to develop a standardised quality control for digital dental radiography.

  • 13.
    Hellén-Halme, Kristina
    et al.
    Malmö högskola, Odontologiska fakulteten (OD).
    Nilsson, Mats
    Malmö högskola, Odontologiska fakulteten (OD).
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Digital radiography in general dental practice. A field study2007Ingår i: Dento-Maxillo-Facial Radiology, ISSN 0250-832X, E-ISSN 1476-542X, Vol. 36, nr 5, s. 249-255Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Abstract Objectives: The aim of this study was to conduct a field study to survey the performance of digital radiography and how it was used by dentists in general dental practice. Methods: Nineteen general dental practitioners were visited at their clinics. Ambient light (illuminance) was measured in the rooms where the monitors were placed. Different technical display parameters were noted. Test images and two phantoms—one low-contrast phantom and one line-pair resolution phantom—were used to evaluate the digital system. How the dentists used the enhancement program was investigated by noting which functions were used. Results: Average illuminance in the operating room was 668 lux (range 190–1250 lux). On radiographs of the low-contrast phantom taken at the clinic, the ability to observe the holes decreased as illuminance increased. On average, the “light percentage” initially set on the monitor had to be decreased by 17% and contrast by 10% to optimise the display of the test images. The general dental practitioners used the enhancement programs most often to alter brightness and contrast to obtain the subjectively best image. Large differences between the clinics were noted. Conclusion: Knowledge of how to handle digital equipment in general dental practice should be improved. A calibrated monitor of good quality should be a given priority, as should proper ambient light conditions. There is a need to develop standardised quality controls for digital dental radiography. Key-words: display monitor, enhancement program, digital radiography, quality

  • 14.
    Hellén-Halme, Kristina
    et al.
    Malmö högskola, Odontologiska fakulteten (OD).
    Nilsson, Mats
    Malmö högskola, Odontologiska fakulteten (OD).
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Effect of monitors on approximal caries detection in digital radiographs—standard versus precalibrated DICOM part 14 displays: An in vitro study2009Ingår i: Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics, ISSN 1079-2104, E-ISSN 1528-395X, Vol. 107, nr 5, s. 716-720Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Objectives. The aim of this study was to evaluate if different ways of adjusting brightness and contrast of monitors with different technical standards influence the diagnosis of carious lesions in digital radiographs. Study design. One hundred extracted teeth (premolars and molars) were radiographed. Seven observers evaluated images for approximal carious lesions on 3 monitors: a standard color monitor with brightness and contrast manually adjusted for viewing radiographs, a Digital Imaging and Communication in Medicine (DICOM) part 14 precalibrated color monitor, and a DICOM part 14 precalibrated monochromatic monitor. All evaluations were made in ambient light <50 lux. Receiver operating characteristic curves were plotted to evaluate results. The standard criterion was a histologic examination of sliced teeth. Kappa statistic evaluated intraobserver agreement. Results. No significant difference in accuracy of approximal carious lesion diagnosis was found between the monitors. Intraobserver agreement varied between fair and good. Conclusion. No differences that could affect clinicians’ abilities to detect carious lesions in digital radiographs existed between the standard monitor and the color and monochrome DICOM part 14 precalibrated monitors.

  • 15.
    Hellén-Halme, Kristina
    et al.
    Malmö högskola, Odontologiska fakulteten (OD).
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Digital röntgen2008Ingår i: Digitala kliniken, Gothia Förlag AB, 2008, s. 29-41Kapitel i bok, del av antologi (Övrigt vetenskapligt)
  • 16.
    Hellén-Halme, Kristina
    et al.
    Malmö högskola, Odontologiska fakulteten (OD).
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Nilsson, Mats
    Malmö högskola, Odontologiska fakulteten (OD).
    Effect of ambient light and monitor brightness and contrast settings on the detection of approximal caries in digital radiographs.2007Konferensbidrag (Refereegranskat)
    Abstract [en]

    Abstract Aims: The aim of this study was to investigate how brightness and contrast settings of the display monitor and ambient light level (illuminance) in the viewing room affect the clinician’s ability to diagnose carious lesions in digital radiographs. Methods: Standardised radiographs were taken of 100 extracted teeth. Seven observers evaluated the images for approximal carious lesions twice, once under 500-lux and once under 1000-lux room illumination. Radiograph brightness and contrast were varied ±50% and ±6%, respectively, to mimic normal limits of monitor adjustment by an inexperienced user and one optimal setting. Thus, five radiographs of each tooth were made. Receiver operating characteristic (ROC) analyses were performed. Histologic examinations of the teeth served as the criterion standard. A paired t-test was used to evaluate whether differences in the areas under the ROC curves were significant, and kappa was used to evaluate intra-observer agreement. Results: When a monitor with optimal brightness and contrast settings was used to detect approximal carious lesions, ambient light levels less than 50 lux were significantly better than levels above 1000 lux (dentine and enamel lesions, p<0.01; dentine lesions, p<0.02). Increasing the contrast setting of the monitor by 6% did not change these results; 50 lux was still significantly better than 1000 lux (enamel lesions, p<0.01; dentine and enamel lesions, p<0.02) for evaluating radiographs. Intra-observer agreement differed from fair to good. Conclusion: Reducing ambient light to less than 50 lux significantly increased the accuracy of diagnosing approximal carious lesions on a monitor with an optimal brightness setting and an optimal or slightly higher than optimal contrast setting.

  • 17.
    Hellén-Halme, Kristina
    et al.
    Malmö högskola, Odontologiska fakulteten (OD).
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Warfvinge, Gunnar
    Malmö högskola, Odontologiska fakulteten (OD).
    Nilsson, Mats
    Malmö högskola, Odontologiska fakulteten (OD).
    Effect of ambient light and monitor brightness and contrast settings on the detection of approximal caries in digital radiographs: an in vitro study2008Ingår i: Dento-Maxillo-Facial Radiology, ISSN 0250-832X, E-ISSN 1476-542X, Vol. 37, nr 7, s. 380-384Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Objectives: The aim of this study was to investigate how brightness and contrast settings of the display monitor and ambient light level (illuminance) in the viewing room affect the clinician's ability to diagnose carious lesions in digital radiographs. Methods: Standardized radiographs were taken of 100 extracted teeth. Seven observers evaluated the images for approximal carious lesions twice, once under 50 lux and once under 1000 lux room illumination. Monitor brightness and contrast were varied ±50% and ±6%, respectively, to mimic the normal limits of monitor adjustment by an inexperienced user and one optimal setting. This was done by adjusting radiograph brightness and contrast by ±25%. Thus, five radiographs of each tooth were evaluated. Receiver operating characteristic (ROC) analyses were performed. Histological examinations of the teeth served as the criterion standard. A paired t-test was used to evaluate whether differences in the areas under the ROC curves were significant and kappa was used to evaluate intraobserver agreement. Results: When a monitor with optimal brightness and contrast settings was used to detect approximal carious lesions, ambient light levels less than 50 lux were significantly better than levels above 1000 lux (dentin and enamel lesions, P < 0.01; dentin lesions, P < 0.02). Increasing the contrast setting of the monitor by 6% did not change these results; 50 lux was still significantly better than 1000 lux (enamel lesions, P < 0.01; dentin and enamel lesions, P < 0.02) for evaluating radiographs. Intraobserver agreement differed from fair to good. Conclusions: Reducing ambient light to less than 50 lux significantly increased the accuracy of diagnosing approximal carious lesions on a monitor with an optimal brightness setting and an optimal or slightly higher than optimal contrast setting.

  • 18.
    Hellén-Halme, Kristina
    et al.
    Malmö högskola, Odontologiska fakulteten (OD).
    Rohlin, Madeleine
    Malmö högskola, Odontologiska fakulteten (OD).
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Dental digital radiography: a survey of quality aspects2005Ingår i: Swedish Dental Journal, ISSN 0347-9994, Vol. 29, nr 2, s. 81-87Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The aim was to evaluate the experiences of Swedish general dental practitioners (GDPs) with digital radiography and their opinion on the same, particularly regarding quality issues. A letter was sent to all GDPs in private care in Region Skåne, Sweden, asking whether they used digital radiography (n=513). The response rate was 79%. The number of private GDPs who replied that they used digital radiography was 106. The Public Dental Service in Region Skåne listed 33 GDPs who worked with digital radiography. Based on these answers, a questionnaire was sent to the GDPs working with digital radiography (n=139). The questionnaire comprised 27 questions about the dentists, the system of intra-oral digital radiography, and the GDPs’ experiences of and opinions on issues regarding image quality and quality control. The response rate to the questionnaire was 94%. Almost all, 92%, worked with charge-coupled device (CCD) and complementary metal oxide semiconductor (CMOS) sensors. Most GDPs were satisfied with their digital radiographic system. The majority (65%) experienced problems. Detector failure and trouble with the software were common. The GDPs wrote that they used lower exposure times in digital radiography than traditional film radiography. The estimated reduction in exposure time was said to be between 51% and 75%. Thirtyfive per cent continued to use film parallel with digital radiography. The answers indicated that less than half of the equipment (40%) underwent quality control. Quality controls, when conducted, were undertaken once or twice a year, mainly by technicians from the companies that had sold the digital equipment. Based on the results of the questionnaire, there seems to be a need to improve the maintenance and the quality of digital radiography. It is also important that the GDPs become more aware of the problems that can occur when a new technique is introduced and that they develop the skills to handle these problems.

  • 19. Kharazmi, Mohammad
    et al.
    Carlsson, Kristina
    Björnstad, Lillemor
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Warfvinge, Gunnar
    Malmö högskola, Odontologiska fakulteten (OD).
    Mandibular osteomyelitis associated with paroxysmal nocturnal hemoglobinuria2011Ingår i: International Journal of Oral and Maxillofacial Surgery, ISSN 0901-5027, E-ISSN 1399-0020, Vol. 40, nr 12, s. 1441-1444Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    A case of osteomyelitis in a 71-year-old woman with paroxysmal nocturnal hemoglobinuria (PNH) is reported. Osteomyelitis of the jaw is a well known condition of the oral and maxillofacial region that may cause severe morbidity. It is well documented that vaso-occlusive crises in sickle cell anaemia, a hemolytic blood disorder, can make the jaw bone susceptible to osteomyelitis. The authors report a case proposing an association between PNH and osteomyelitis of the mandible.

  • 20. Koh, Kwang-Joon
    et al.
    List, Thomas
    Malmö högskola, Odontologiska fakulteten (OD).
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Rohlin, Madeleine
    Malmö högskola, Odontologiska fakulteten (OD).
    Relationship between clinical and magnetic resonance imaging diagnoses and findings in degenerative and inflammatory temporomandibular joint diseases: a systematic literature review2009Ingår i: Journal of Orofacial Pain, ISSN 1064-6655, E-ISSN 1945-3396, Vol. 23, nr 2, s. 123-139Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    AIM: To describe evidence for a relationship between diagnoses and findings of clinical examination and diagnoses and findings of magnetic resonance imaging (MRI) examination for degenerative and inflammatory temporomandibular joint diseases. METHODS: PubMed and the Cochrane Library were searched using specific indexing terms and reference lists were hand-searched. Included publications satisfied pre-established criteria. Primary studies were interpreted using a modification of the Quality Assessment of Diagnostic Accuracy Studies (QUADAS) tool. RESULTS: The literature search yielded 219 titles and abstracts. Eighty-two studies were selected and read in full-text. After data extraction and interpretation with the QUADAS tool, 23 studies remained. There was a vast heterogeneity in study design, clinical examination methods, and diagnostic criteria. No clear evidence was found for a relationship between clinical and MRI diagnoses and findings. Several studies reported a relationship between clinical pain and internal derangements diagnosed with MRI, but the calculated odds ratio (OR) for this relationship was generally low (1.54-2.04). ORs for the relationship between pain and disc displacement without reduction (4.82) or between crepitation and disc displacement without reduction (3.71) were higher. CONCLUSION: This review reveals a need for studies with improved quality in reporting of samples, examination techniques, findings, and definitions and rationales for cutoffs, categories, and diagnoses. We recommend that standardized protocols such as the Research Diagnostic Criteria for temporomandibular disorders (RDC/TMD) and the Standards for Reporting of Diagnostic Accuracy (STARD) statement be implemented in future studies.

  • 21.
    Limchaichana, Napat
    et al.
    Malmö högskola, Odontologiska fakulteten (OD).
    Ekberg, EwaCarin
    Malmö högskola, Odontologiska fakulteten (OD).
    Nilner, Maria
    Malmö högskola, Odontologiska fakulteten (OD).
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Nilsson, Håkan
    Malmö högskola, Odontologiska fakulteten (OD).
    Is there an agreement between clinical diagnoses and MRI findings in patients with TMD pain?2006Konferensbidrag (Refereegranskat)
    Abstract [en]

    Is there an agreement between clinical diagnoses and MRI findings in patients with TMD pain?

  • 22.
    Limchaichana, Napat
    et al.
    Malmö högskola, Odontologiska fakulteten (OD).
    Nilsson, Håkan
    Malmö högskola, Odontologiska fakulteten (OD).
    Ekberg, EwaCarin
    Malmö högskola, Odontologiska fakulteten (OD).
    Nilner, Maria
    Malmö högskola, Odontologiska fakulteten (OD).
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Clinical diagnoses and MRI findings in patients with TMD pain2007Ingår i: Journal of Oral Rehabilitation, E-ISSN 1365-2842, Vol. 34, nr 4, s. 237-245Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The aim of this study was to correlate clinical diagnoses in temporomandibular disorders patients suffering from pain diagnosed as arthralgia/osteoarthritis or myofascial pain according to the Research Diagnostic Criteria for temporomandibular disorders with findings made on magnetic resonance imaging. The temporomandibular joints of 60 consecutive patients, 41 with arthralgia/osteoarthritis and 19 with myofascial pain, were examined clinically and with magnetic resonance imaging. The most common magnetic resonance imaging findings were disc displacements and structural bone changes, which were found in both pain groups. However, disc displacements were found significantly (p = 0.002) more often in the arthralgia/osteoarthritis group. 104 joints were found to have no clinical diagnosis of disc displacements, but 64 of these joints had findings of disc displacements on magnetic resonance imaging. Joint fluid was found both in the arthralgia/osteoarthritis group (20 patients) and in the myofascial pain group (5 patients). Patients having a combination of disc displacement and joint fluid were significantly (p = 0.047) more common in the arthralgia/osteoarthritis group. In conclusion, the magnetic resonance imaging findings of disc displacement and structural bone changes were common in temporomandibular disorders patients with pain of both myogenous and arthrogenous origin. The clinical diagnoses for subdivision into myogenous and arthrogenous pain groups were not confirmed by magnetic resonance imaging.

  • 23.
    Limchaichana, Napat
    et al.
    Malmö högskola, Odontologiska fakulteten (OD).
    Nilsson, Håkan
    Malmö högskola, Odontologiska fakulteten (OD).
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Ekberg, EwaCarin
    Malmö högskola, Odontologiska fakulteten (OD).
    Resilient appliance-therapy treatment outcome in patients with TMD pain correlated to MRI-determined changes in condyle position2009Ingår i: Cranio, ISSN 0886-9634, E-ISSN 2151-0903, Vol. 27, s. 185-193Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The aim of this research was to study if changes in condyle position in temporomandibular disorders (TMD) patients could be a factor that is affected by resilient appliance therapy and if it influences the treatment outcome. The study investigated 48 patients randomly assigned to a treatment group (T group = 21 patients, using resilient appliance) or a control group (C group = 27 patients, using nonoccluding appliance). Changes in the condyle-fossa relationship (with and without the appliance) were determined in an MRI examination. Ten weeks after treatment, the treatment outcome was measured. The results showed that with the appliance, change in condyle position occurred in 76% of the T group and 22% of the C group (p < 0.001). Sixty-seven percent (67%) of the T group and 44% of the C group experienced a successful treatment outcome. Treatment outcome was not related to changes in condyle position in patients with TMD pain.

  • 24.
    Limchaichana, Napat
    et al.
    Malmö högskola, Odontologiska fakulteten (OD).
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Rohlin, Madeleine
    Malmö högskola, Odontologiska fakulteten (OD).
    The efficacy of magnetic resonance imaging in the diagnosis of degenerative and inflammatory temporomandibular joint disorders: a systematic literature review2006Ingår i: Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics, ISSN 1079-2104, E-ISSN 1528-395X, Vol. 102, nr 4, s. 521-536Artikel, forskningsöversikt (Övrigt vetenskapligt)
    Abstract [en]

    Objective. To evaluate the evidence for the efficacy of magnetic resonance imaging (MRI) in the diagnosis of disk position and configuration, disk perforation, joint effusion, and osseous and bone marrow changes in the temporomandibular joint. Study design. A PubMed literature search with specific indexing terms and a hand search were made. Two reviewers assessed the level of evidence of relevant publications as high, moderate, or low. Based on this, the evidence grade for diagnostic efficacy was rated as strong, moderately strong, limited, or insufficient. Results. The literature search yielded 494 titles, of which 22 were relevant. No publication had a high level of evidence, and 12 had moderate and 10 low levels of evidence. The evidence grade for diagnostic efficacy expressed as sensitivity, specificity, and predictive values was insufficient. Conclusion. That evidence is insufficient emphasizes the need for high-quality studies on the diagnostic efficacy of MRI, incorporating accepted methodologic criteria.

  • 25.
    Lindh, Christina
    et al.
    Malmö högskola, Odontologiska fakulteten (OD).
    Isaksson, Sten
    Nilsson, Mats
    Malmö högskola, Odontologiska fakulteten (OD).
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Ribeiro-Rotta, Rejane Faria
    Rohlin, Madeleine
    Malmö högskola, Odontologiska fakulteten (OD).
    Käkarnas benvävnad: tandläkarens undersökning och bedömning av stor betydelse2008Ingår i: Tandläkartidningen, ISSN 0039-6982, Vol. 100, nr 9-10, s. 59-62Artikel i tidskrift (Övrig (populärvetenskap, debatt, mm))
    Abstract [sv]

    Röntgenbilder som tas i kliniken är av stor betydelse. Röntgenbilden kan resultera i en diagnos, användas till att göra en prognos, att förutsäga framtida händelser men är även viktig vid utvärdering av ett behandlingsresultat.

  • 26.
    Lindh, Christina
    et al.
    Malmö högskola, Odontologiska fakulteten (OD).
    Obrant, Karl
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Maxillary Bone Mineral Density and its Relationship to the Bone Mineral Density of the Lumbar Spine and Hip2004Ingår i: Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics, ISSN 1079-2104, E-ISSN 1528-395X, Vol. 98, nr 1, s. 102-109Artikel i tidskrift (Övrigt vetenskapligt)
    Abstract [en]

    Objective. We sought to measure the bone mineral density (BMD) of various regions in the maxilla before implant treatment and to investigate correlations between these values and the BMDs of the spine and hip. Study design. Eighteen patients were examined by means of quantitative computed tomography, and the BMD of the maxillary alveolar ridge was calculated. The same patients also underwent dual-energy x-ray absorptiometry of the lumbar spine and the total hip. Analysis of variance was used to compare BMD values between an within individuals. The Pearson correlation coefficient was used to correct for sex and body mass and to calculate the correlation between the BMD of the maxillary alveolar ridge and the BMD of the spine and hip. Results. The maxillary BMD varied significantly between individuals (P<.001) and within individuals (P<.001). The BMD of the anterior region of the maxilla was correlated significantly with the BMD of the lubar spine (r = 0.6; P <.05) Conclusion. A site-specific evaluation of maxillary bone tissue could be of value before implant treatment.

  • 27.
    List, Thomas
    et al.
    Malmö högskola, Odontologiska fakulteten (OD).
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Knutsson, Kerstin
    Malmö högskola, Odontologiska fakulteten (OD).
    Wiese, Mie
    Svensson, P
    Bakke, M
    Hintze, H
    Wenzel, A
    Associations between TMJ signs and symptoms and radiographic findings2007Konferensbidrag (Övrig (populärvetenskap, debatt, mm))
  • 28. Lofthag-Hansen, Sara
    et al.
    Lindh, Christina
    Malmö högskola, Odontologiska fakulteten (OD).
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Radiographic assessment of the marginal bone level after implant treatment: a comparison of periapical and Scanora detailed narrow beam radiography2003Ingår i: Dento-Maxillo-Facial Radiology, ISSN 0250-832X, E-ISSN 1476-542X, Vol. 32, nr 2, s. 97-103Artikel i tidskrift (Övrigt vetenskapligt)
    Abstract [en]

    Objectives: To compare assessments of the marginal bone level around dental implants in the mandible using periapical radiography and Scanora detailed narrow beam (DNB) radiography. METHODS: Forty patients treated with Brånemark dental implants in the lower jaw were examined with periapical and Scanora DNB radiography. Ten implants were selected from each of the four dental regions (molar, incisor, canine, premolar), and no more than one implant was selected from the same patient. Seven observers assessed the level of the marginal bone on the mesial and distal surfaces of the implants. Three of the observers made all the assessments twice. RESULTS: Agreement between the methods was 61 %. The highest agreement was found in the molar region. In DNB radiography the marginal bone level was observed to be situated more “coronally” in 17 % and more “apically” in 22 % compared with periapical radiography. The kappa value for interobserver agreement for all observers was 0.33 for periapical radiography and 0.27 for DNB radiography. The weighted kappa value for intraobserver agreement ranged from 0.75 to 0.99 for DNB radiography and from 0.94 to 0.98 for periapical radiography. CONCLUSIONS: Scanora multimodal radiography simplifies examination of implants in the mandible, and observer variation is comparable with that in intraoral periapical radiography.

  • 29.
    Mejàre, Ingegerd
    et al.
    Malmö högskola, Odontologiska fakulteten (OD).
    Axelsson, Susanna
    Davidson, Thomas
    Frisk, Fredrik
    Hakeberg, Magnus
    Kvist, Thomas
    Norlund, Aanders
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Portenier, Isabelle
    Sandberg, Hans
    Tranæus, Sofia
    Bergenholtz, Gunnar
    Diagnosis of the condition of the dental pulp: a systematic review2012Ingår i: International Endodontic Journal, ISSN 0143-2885, E-ISSN 1365-2591, Vol. 45, nr 7, s. 597-613Artikel, forskningsöversikt (Refereegranskat)
    Abstract [en]

    The aim of this systematic review was to appraise the diagnostic accuracy of signs/symptoms and tests used to determine the condition of the pulp in teeth affected by deep caries, trauma or other types of injury. Radiographic methods were not included. The electronic literature search included the databases PubMed,EMBASE, The Cochrane Central Register of Controlled Trials and Cochrane Reviews from January 1950 to June 2011. The complete search strategy is given in an Appendix S1 (available online as Supporting Information. In addition, hand searches were made. Two reviewers independently assessed abstracts and full-text articles. An article was read in full text if at least one of the two reviewers considered an abstract to be potentially relevant. Altogether, 155 articles were read in full text. Of these, 18 studies fulfilled pre-specified inclusion criteria. The quality of included articles was assessed using the QUADAS tool. Based on studies of high or moderate quality, the quality of evidence of each diagnostic method/test was rated in four levels according to GRADE. No study reached high quality; two were of moderate quality. The overall evidence was insufficient to assess the value of toothache or abnormal reaction to heat/cold stimulation for determining the pulp condition. The same applies to methods for establishing pulp status, including electric or thermal pulp testing, or methods for measuring pulpal blood circulation. In general, there are major shortcomings in the design, conduct and reporting of studies in this domain of dental research.

  • 30.
    Nilsson, Håkan
    et al.
    Malmö högskola, Odontologiska fakulteten (OD).
    Limchaichana, Napat
    Malmö högskola, Odontologiska fakulteten (OD).
    Nilner, Maria
    Malmö högskola, Odontologiska fakulteten (OD).
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Ekberg, EwaCarin
    Malmö högskola, Odontologiska fakulteten (OD).
    Clinical diagnoses and MRI findings in patients with TMD pain2006Konferensbidrag (Övrig (populärvetenskap, debatt, mm))
  • 31.
    Nilsson, Håkan
    et al.
    Malmö högskola, Odontologiska fakulteten (OD).
    Limchaichana, Napat
    Malmö högskola, Odontologiska fakulteten (OD).
    Nilner, Maria
    Malmö högskola, Odontologiska fakulteten (OD).
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Ekberg, EwaCarin
    Malmö högskola, Odontologiska fakulteten (OD).
    Resiliensskenan som behandling vid TMD smärta2007Konferensbidrag (Övrig (populärvetenskap, debatt, mm))
  • 32.
    Panmekiate, S.
    et al.
    Department of Radiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand.
    Apinhasmit, W.
    Department of Anatomy, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand.
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Effect of electric potential and current on mandibular linear measurements in cone beam CT2012Ingår i: Dento-Maxillo-Facial Radiology, ISSN 0250-832X, E-ISSN 1476-542X, Vol. 41, nr 7, s. 578-582Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Objectives The purpose of this study was to compare mandibular linear distances measured from cone beam CT (CBCT) images produced by different radiographic parameter settings (peak kilovoltage and milliampere value). Methods 20 cadaver hemimandibles with edentulous ridges posterior to the mental foramen were embedded in clear resin blocks and scanned by a CBCT machine (CB MercuRayTM; Hitachi Medico Technology Corp., Chiba-ken, Japan). The radiographic parameters comprised four peak kilovoltage settings (60 kVp, 80 kVp, 100 kVp and 120 kVp) and two milliampere settings (10 mA and 15 mA). A 102.4 mm field of view was chosen. Each hemimandible was scanned 8 times with 8 different parameter combinations resulting in 160 CBCT data sets. On the cross-sectional images, six linear distances were measured. To assess the intraobserver variation, the 160 data sets were remeasured after 2 weeks. The measurement precision was calculated using Dahlberg's formula. With the same peak kilovoltage, the measurements yielded by different milliampere values were compared using the paired t-test. With the same milliampere value, the measurements yielded by different peak kilovoltage were compared using analysis of variance. A significant difference was considered when p < 0.05. Results Measurement precision varied from 0.03 mm to 0.28 mm. No significant differences in the distances were found among the different radiographic parameter combinations. Conclusions Based upon the specific machine in the present study, low peak kilovoltage and milliampere value might be used for linear measurements in the posterior mandible.

  • 33. Peck, CC
    et al.
    Goulet, JP
    Lobbezoo, F
    Schiffman, EL
    Alstergren, Per
    Malmö högskola, Odontologiska fakulteten (OD).
    Anderson, GC
    Malmö högskola, Odontologiska fakulteten (OD).
    de Leuw, R
    Jensen, R
    Michelotti, A
    Orbach, R
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    List, Thomas
    Malmö högskola, Odontologiska fakulteten (OD).
    Expanding the taxonomy of the diagnostic criteria for temporomandibular disorders2014Ingår i: Journal of Oral Rehabilitation, E-ISSN 1365-2842, Vol. 41, nr 1, s. 2-23Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    There is a need to expand the current temporomandibular disorders' (TMDs) classification to include less common but clinically important disorders. The immediate aim was to develop a consensus-based classification system and associated diagnostic criteria that have clinical and research utility for less common TMDs. The long-term aim was to establish a foundation, vis-à-vis this classification system, that will stimulate data collection, validity testing and further criteria refinement. A working group [members of the International RDC/TMD Consortium Network of the International Association for Dental Research (IADR), members of the Orofacial Pain Special Interest Group (SIG) of the International Association for the Study of Pain (IASP), and members from other professional societies] reviewed disorders for inclusion based on clinical significance, the availability of plausible diagnostic criteria and the ability to operationalise and study the criteria. The disorders were derived from the literature when possible and based on expert opinion as necessary. The expanded TMDs taxonomy was presented for feedback at international meetings. Of 56 disorders considered, 37 were included in the expanded taxonomy and were placed into the following four categories: temporomandibular joint disorders, masticatory muscle disorders, headache disorders and disorders affecting associated structures. Those excluded were extremely uncommon, lacking operationalised diagnostic criteria, not clearly related to TMDs, or not sufficiently distinct from disorders already included within the taxonomy. The expanded TMDs taxonomy offers an integrated approach to clinical diagnosis and provides a framework for further research to operationalise and test the proposed taxonomy and diagnostic criteria

  • 34. Peltola, Jaakko S
    et al.
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Svanaes, Dagfinn
    Wenzel, Ann
    Odontologisk radiologi. Historik, myndigheter och regelverk2009Ingår i: Tandläkartidningen, ISSN 0039-6982, Vol. 101, nr 1, s. 60-66Artikel i tidskrift (Övrigt vetenskapligt)
    Abstract [sv]

    Tandläkarutbildningen är på fem år i samtliga nordiska länder och leder till kompetens och kunskap att använda intraoral radiologi i Sverige, i Norge intraoral och panoramaröntgen samt alla typer av maxillofacial radiologisk utrustning i Danmark och Finland. Skillnader finns i bestämmelserna för tandläkare, tandsköterskor och tandhygienister vad gäller användandet av panorama och CBCT-enheter. Kompletterande utbildning i enlighet med EU:s riktlinjer är endast obligatorisk i Finland. Kraven på dental röntgenutrustning är väldigt lika i de nordiska länderna. Kvalitetssäkringssystem regleras i lag i Finland, Sverige och Danmark.

  • 35. Peltola, Jaakko S
    et al.
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Svanaes, Dagfinn
    Wenzel, Ann
    Regulations in the Nordic countries concerning oral and maxillofacial radiographic imaging technologies and their use2009Ingår i: Den norske tannlegeforenings tidende, ISSN 0029-2303, E-ISSN 1894-180X, Vol. 119, nr 1, s. 32-37Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The first national recommendations for radiation protection were given by the British Roentgen Society (1915) and American Roentgen Society (1922). The basis for modern radiation protection was given in the recommendations of ICRP (ICRP 26) in 1977. Dental education in all Nordic countries takes five years and leads to the competence of using intraoral radiography in Sweden and intraoral and panoramic radiography Norway and all dentomaxillofacial radiological (DMFR) units in Denmark and Finland. There is obligatory special training for using panoramic units in Sweden. For performing CBCT examinations and interpreting the images, a specialist degree in oral-maxillo-facial radiology is required in Sweden and Norway. Dental assistants and hygienists can perform intraoral radiography under the responsibility of a dentist. In Sweden and Norway dental hygienists can also record caries and periodontal diseases, although in Sweden all radiographs must be shown to the dentist. In Denmark and Norway the dental hygienists may be responsible for a dental x-ray unit, and they can refer the patient for a radiographic examination.Updating education is mandatory only in Finland according to EU guidelines. The demands for dental radiographic units are very similar in all countries. Quality assurance programs are regulated by law in Finland, Sweden and Denmark. The programs comprise daily, monthly or yearly checks of radiographic procedures. Regulations for digital dental radiography are still under construction, though some are available in Denmark.

  • 36.
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Imaging of the Temporomandibular Joint2010Ingår i: Current Concepts on Temporomandibular Disorders / [ed] Daniele Manfredini, Quintessence , 2010, s. 207-222Kapitel i bok, del av antologi (Övrigt vetenskapligt)
  • 37.
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Magnetic resonance imaging of the temporomandibular joint. Diagnostic accuracy and referral criteria.2007Konferensbidrag (Refereegranskat)
    Abstract [en]

    Clinical problems and pain involving the masticatory musculature and the temporomandibular joint (TMJ) are embraced in the term temporomandibular disorders (TMD). To treat these patients, clinicians need accurate diagnostic methods. The Research Diagnostic Criteria for TMD (RDC/TMD) have been proposed as a reliable diagnostic system of TMD patients. The system is currently used worldwide by dentists who treat patients with TMD pain. It is based on the patient history and clinical criteria; in some diagnostic subgroups, imaging techniques such as magnetic resonance imaging (MRI) can be included. Although MRI of the TMJ has been used for many years, its diagnostic and therapeutic efficacy—how well MRI supports clinicians in their diagnoses and treatment decisions—is unclear. A systematic review found that the evidence grade for diagnostic efficacy expressed as sensitivity, specificity, and predictive values was insufficient. No studies that investigated the usefulness of MRI for treating TMD patients were found. Several studies have compared clinical TMD diagnoses made using the RDC/TMD with MRI findings of the TMJ; agreement between these two methods was fair to poor. This emphasizes the need for high-quality studies on the diagnostic efficacy of MRI. Referral criteria for MRI are uncertain, except when surgical treatment is being considered as an option.

  • 38.
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Radiographic Imaging in Oral and Maxillofacial Surgery2010Ingår i: Oral and Maxillofacial Surgery / [ed] Lars Andersson, Karl-Erik Kahnberg, M Anthony Pogrel, Wiley-Blackwell, 2010, s. 17-28Kapitel i bok, del av antologi (Övrigt vetenskapligt)
    Abstract [sv]

    Bilddiagnostik beskrivs av patologiska förändringar som behandlas med maxillofacial kirurgi.

  • 39.
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Validation studies of the RDC/TMD progress toward version 22008Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    Description: The Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD; Dworkin and LeResche, 1992) contained specifications for patient history, clinical examination procedures, instruments for assessing the person in pain, and specific diagnostic criteria for 8 types of TMD common enough to support the development of the first version of the RDC/TMD protocol. At the outset, the goal of the 1992 publication was to foster research sufficient to lead to a stronger empirically-based revision of that protocol. In the ensuing years, the International RDC/TMD Consortium was developed and incorporated into the IADR, simultaneously supporting collaborative TMD studies around the world. More recently, a large multi-site study was funded in order to specifically examine the reliability and validity of the published RDC/TMD and to recommend revisions. This symposium aims to (1) present the research and recommendations from that study, (2) present perspectives on pain and TMD from other studies, (3) foster critical discussion regarding the status and future directions of the published RDC/TMD, and (4) develop, as an outcome, a consensus paper containing specifications for the next version of the protocol, RDC/TMD v2.0. For this full-day symposium, Session 1 (morning) will be comprised of an overview on classification systems for pain disorders followed by presentations by 5 investigators from the NIDCR-funded multi-site Validity Study Group; presentations will focus on the methods and data examining the reliability and validity of the current RDC/TMD protocol and will conclude with recommendations for revisions. Session 2 (afternoon) will be comprised of presentations by other investigators who are active in RDC/TMD research, TMD research not based on the RDC/TMD, and other pain disorder research. This Symposium is aimed at all levels of investigators in that new research questions for the next cycle of RDC/TMD development are expected to emerge from the meeting.

  • 40.
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    What you can and cannot see in TMJ imaging - an overview related to the RDC/TMD diagnostic system2010Ingår i: Journal of Oral Rehabilitation, E-ISSN 1365-2842, Vol. 37, nr 10, s. 771-778Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Summary  In the current version (I) of the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD), imaging of the temporomandibular joint (TMJ) is not required for a diagnosis. Research has shown that radiological findings of the TMJ do not always support the clinical findings of the RDC/TMD diagnosis. But imaging should only be performed when it is known that it could contribute to (i) a proper diagnosis and (ii) treatment with a better prognosis. Several techniques are used to image the TMJ: panoramic radiography, plain radiography, conventional and computed tomography (CT), digital volume tomography or cone-beam computed tomography (CBCT), arthrography and magnetic resonance imaging (MRI). Osseous changes are best visualized in tomography, and the newly developed CBCT is a promising method but must be evaluated in a comparative analysis with other tomographic techniques. And although MRI is the method of choice for imaging the disc, a systematic review found the evidence grade for the diagnostic efficacy of MRI to be insufficient. Today, there is no clear evidence for when TMD patients should be examined with imaging methods. Future research designs should be randomized controlled trials where various radiological examination findings are analysed in relation to therapeutic outcome. In future versions of the RDC/TMD diagnostic system, recommended radiographic techniques must be evaluated and defined, diagnostic criteria well defined and observers calibrated.

  • 41.
    Petersson, Arne
    et al.
    Malmö högskola, Odontologiska fakulteten (OD).
    Axelsson, Susanna
    Malmö högskola, Odontologiska fakulteten (OD).
    Davidson, Thomas
    Frisk, Fredrik
    Hakeberg, Magnus
    Kvist, Thomas
    Norlund, Anders
    Mejàre, Ingegerd
    Malmö högskola, Odontologiska fakulteten (OD).
    Portenier, Isabelle
    Sandberg, Hans
    Tranæus, Sofia
    Bergenholtz, Gunnar
    Radiological diagnosis of periapical bone tissue lesions in endodontics: a systematic review2012Ingår i: International Endodontic Journal, ISSN 0143-2885, E-ISSN 1365-2591, Vol. 45, nr 9, s. 783-801Artikel, forskningsöversikt (Refereegranskat)
    Abstract [en]

    This systematic review evaluates the diagnostic accuracy of radiographic methods employed to indicate presence/absence and changes over time of periapical bone lesions. Also investigated were the leads radiographic images may give about the nature of the process and the condition of the pulp in nonendodontically treated teeth. Electronic literature search included the databases PubMed, Embase and CENTRAL from January 1950 to June 2011. All languages were accepted provided there was an abstract in English. The MeSH terms were ‘Cone beam computed tomography (CBCT)’,‘Radiography, panoramic’, ‘Periapical diseases’, ‘Dental pulp diseases’, ‘Sensitivity and specificity’, ‘receiver operating characteristics (ROC) curve’, ‘Cadaver’, ‘Endodontics’ and ‘Radiography dental’. Two reviewers independently assessed abstracts and full text articles. An article was read in full text if at least one of the two reviewers considered an abstract to be potentially relevant. Altogether, 181 articles were read in full text. The GRADE approach was used to assess the quality of evidence of each radiographic method based on studies of high or moderate quality. Twenty-six studies fulfilled criteria set for inclusion. None was of high quality;11 were of moderate quality. There is insufficient evidence that the digital intraoral radiographic technique is diagnostically as accurate as the conventional film technique. The same applies to CBCT. No conclusions can be drawn regarding the accuracy of radiological examination in identifying various forms of periapical bone tissue changes or about the pulpal condition.

  • 42.
    Petersson, Arne
    et al.
    Malmö högskola, Odontologiska fakulteten (OD).
    Eriksson, Lars
    Malmö högskola, Odontologiska fakulteten (OD).
    Westesson, Per-Lennart
    MR images mimic disc after discectomy2005Ingår i: Dento-Maxillo-Facial Radiology, ISSN 0250-832X, E-ISSN 1476-542X, Vol. 34, nr 4, s. 237-239Artikel i tidskrift (Övrigt vetenskapligt)
    Abstract [en]

    MRI of a 30-year-old woman 1 year after discectomy showed a residual disc-like tissue. The observation was initially confusing, but a close comparison of pre- and post-operative images suggested that the inferior wall of the anterior joint capsule had migrated superiorly after the removal of the disc and mimicked a residual disc on the follow-up MR images.

  • 43.
    Petersson, Arne
    et al.
    Malmö högskola, Odontologiska fakulteten (OD).
    Gröndahl, Hans-Göran
    Suomalainen, Anni
    Computed tomography in oral and maxillofacial radiology2009Ingår i: Den norske tannlegeforenings tidende, ISSN 0029-2303, E-ISSN 1894-180X, Vol. 119, nr 2, s. 86-93Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Computed tomography (CT) is today commonly used in imaging of the maxillofacial area. Conventional CT examinations are usually performed in medical X-ray departments. However, a relatively new technique named cone-beam computed tomography (CBCT) or digital volume tomography (DVT) has now also become available for dental purposes. The advantage with this technique is a lower radiation dose compared to conventional CT. Common examples when DVT is used are; for diagnosing the position of impacted canines and suspected root resorption of the adjacent lateral incisor, preoperative planning of implant treatment and examination of periapical areas when intraoral radiography has given uncertain information. Conventional CT is used for examination of larger areas in diagnosing e.g. facial anomalies, extensive traumata and tumours.

  • 44.
    Petersson, Arne
    et al.
    Malmö högskola, Odontologiska fakulteten (OD).
    Gröndahl, Hans-Göran
    Suomalainen, Anni
    Datortomografi inom odontologisk radiologi2009Ingår i: Tandläkartidningen, ISSN 0039-6982, Vol. 101, nr 2, s. 42-50Artikel i tidskrift (Övrigt vetenskapligt)
    Abstract [sv]

    Datortomografi används ofta vid odontologiska röntgenundersökningar. Konventionell datortomografi introducerades år 1972 och nu finns datortomografer vid alla medicinska röntgenavdelningar. Digital volymtomografi är en typ av datortomografi som sedan slutet av 1990-talet kommit till stor användning vid odontologiska undersökningar. Konventionell datortomografi ger höga stråldoser men med volymtomografi kan stråldosen reduceras väsentligt. Konventionell datortomografi används vid utredning av ansiktstraumata och tumörer medan volymtomografi vanligen används vid undersökning av tänder och käkar.

  • 45.
    Pigg, Maria
    et al.
    Malmö högskola, Odontologiska fakulteten (OD).
    List, Thomas
    Malmö högskola, Odontologiska fakulteten (OD).
    Abul-Kasim, Kasim
    Maly, Pavel
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    A comparative analysis of magnetic resonance imaging and radiographic examinations of patients with atypical odontalgia2014Ingår i: Journal of oral & facial pain and headache, ISSN 2333-0384, Vol. 28, nr 3, s. 233-242Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    AIMS: To examine (1) the occurrence of magnetic resonance imaging (MRI) signal changes in the painful regions of patients with atypical odontalgia (AO) and (2) the correlation of such findings to periapical bone defects detected with a comprehensive radiographic examination including cone beam computed tomography (CBCT). METHODS: A total of 20 patients (mean age 52 years, range 34 to 65) diagnosed with AO participated. Mean pain intensity (± standard deviation) was 5.6 ± 1.8 on a 0-10 numerical rating scale, and mean pain duration was 4.3 ± 5.2 years. The inclusion criterion was chronic pain (> 6 months) located in a region with no clear pathologic cause identified clinically or in periapical radiographs. In addition to a clinical examination and a self-report questionnaire, the assessments included radiographic examinations (panoramic, periapical, and CBCT images), and an MRI examination. Changes in MRI signal in the painful region were recorded. Spearman's rank correlation between radiographic and MRI findings was calculated. RESULTS: Eight of the patients (40%) had MRI signal changes in the pain region. The correlation to radiographic periapical radiolucencies was 0.526 (P = .003). Of the eight teeth displaying changes in MRI signal, six showed periapical radiolucency in the radiographs. CONCLUSION: MRI examination revealed no changes in the painful region in a majority of patients with AO, suggesting that inflammation was not present. MRI findings were significantly correlated to radiographic findings

  • 46.
    Pigg, Maria
    et al.
    Malmö högskola, Odontologiska fakulteten (OD).
    List, Thomas
    Malmö högskola, Odontologiska fakulteten (OD).
    Abul-Kasim, Kasim
    Maly, Pavel
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    MRI findings in patients with atypical odontalgia (AO)2012Ingår i: Journal of Dental Research, ISSN 0022-0345, E-ISSN 1544-0591, Vol. 91, nr Special Issue B, artikel-id 304Artikel i tidskrift (Övrigt vetenskapligt)
  • 47.
    Pigg, Maria
    et al.
    Malmö högskola, Odontologiska fakulteten (OD).
    List, Thomas
    Malmö högskola, Odontologiska fakulteten (OD).
    Petersson, Kerstin
    Malmö högskola, Odontologiska fakulteten (OD).
    Lindh, Christina
    Malmö högskola, Odontologiska fakulteten (OD).
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    CBCT provides additional diagnostic information in patients with atypical odontalgia2011Ingår i: Journal of Dental Research, ISSN 0022-0345, E-ISSN 1544-0591, Vol. 90, nr Special Issue A, artikel-id 3083Artikel i tidskrift (Övrigt vetenskapligt)
  • 48.
    Pigg, Maria
    et al.
    Malmö högskola, Odontologiska fakulteten (OD).
    List, Thomas
    Malmö högskola, Odontologiska fakulteten (OD).
    Petersson, Kerstin
    Malmö högskola, Odontologiska fakulteten (OD).
    Lindh, Christina
    Malmö högskola, Odontologiska fakulteten (OD).
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Diagnostic yield of conventional radiographic and cone-beem computed tomographic images in patients with atypical odontalgia2011Ingår i: International Endodontic Journal, ISSN 0143-2885, E-ISSN 1365-2591, Vol. 12, nr 44, s. 1092-1101Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Abstract AIM: To investigate whether the additional diagnostic yield of a cone-beam computed tomography (CBCT) examination over conventional radiographs in patients primarily suspected of having atypical odontalgia (AO) improves differentiation between AO and symptomatic apical periodontitis (SAP) in patients with severe chronic intraoral pain. METHODOLOGY: In this clinical study, 25 patients (mean age 54 ± 11 years, range 34-72) participated; 20 were diagnosed with AO and 5 with SAP. All patients were recruited from the clinics of the Faculty of Odontology, Malmö University. AO inclusion criteria were chronic pain (>6 months) in a region where a tooth had been endodontically or surgically treated, with no pathological cause detectable in clinical or radiologic examinations. SAP inclusion criteria were recurrent pain from a tooth diagnosed with apical periodontitis in clinical and radiographic examinations. Assessments comprised a self-report questionnaire on pain characteristics, a comprehensive clinical examination and a radiographic examination including panoramic and intraoral radiographs and CBCT images. The main outcome measure was periapical bone destruction. RESULTS: Sixty per cent of patients with AO had no periapical bone destructions detectable with any radiographic method. Overall, CBCT rendered 17% more periapical bone destructions than conventional radiography. Average pain intensity in patients with AO was 5.6 (± 1.8) on a 0-10 numerical rating scale, and average pain duration was 4.3 (± 5.2) years. CONCLUSION: Cone-beam computed tomography improves identification of patients without periapical bone destruction, which may facilitate differentiation between AO and SAP.

  • 49.
    Pigg, Maria
    et al.
    Malmö högskola, Odontologiska fakulteten (OD).
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    A comparative analysis of MRI, CBCT and conventional radiography in patients with intraoral pain2007Konferensbidrag (Övrig (populärvetenskap, debatt, mm))
  • 50.
    Pigg, Maria
    et al.
    Malmö högskola, Odontologiska fakulteten (OD).
    Petersson, Arne
    Malmö högskola, Odontologiska fakulteten (OD).
    Petersson, Kerstin
    Malmö högskola, Odontologiska fakulteten (OD).
    Maly, Pavel
    List, Thomas
    Malmö högskola, Odontologiska fakulteten (OD).
    A comparative analysis of MRI, CBCT and conventional radiography in patients with atypical odontalgia and symptomatic apical periodontitis: preliminary results2006Ingår i: Swedish Dental Journal, ISSN 0347-9994, Vol. 30, nr 4, s. 173-174Artikel i tidskrift (Övrigt vetenskapligt)
    Abstract [en]

    Aim: Atypical odontalgia(AO) is a chronic pain condition located in the teeth and jaws. It has been suggested, that AO is best regarded as a neuropathic pain condition, but knowledge regarding the etiology, diagnostics, and management of AO is not yet satisfactory. This pilot study evaluates the clinical usefulness of more recently developed imaging methods for intraoral pain conditions. The aim is to compare the diagnostic findings using magnetic resonance imaging(MRI) and cone beam computed tomography(CBCT) with the findings from conventional radiography in patients with atypical odontalgia(AO) and symptomatic apical periodontitis(SAP). Material and methods: 12 patients (9 F, 3 M) mean age 50,25 years, range 36 - 63 years participated in the study. The patients were referred to the Orofacial Pain Unit or the Department of Endodontics, Faculty of Odontology, Malmö University. Inclusion criteria for AO were chronic pain (>6 months) located in a region where a tooth had been endodontically or surgically treated, pain with no pathological cause detectable in clinical or radiological examinations. For SAP, the inclusion criteria were recurrent pain from a tooth diagnosed with apical periodontitis in a clinical and radiographic examination. Ten of the patients in the study were diagnosed with AO and two with SAP. The patients were clinically assessed with a qualitative somatosensory examination, a dental examination, an examination of the masticatory system(RDC/TMD), and panoramic and intraoral radiographs. A questionnaire was used to gather information about pain characteristics, psychosocial status(SCL-90), and quality of life. Besides these measures, each patient underwent a CBCT(3D-Accuitomo, J Morita Co) examination and a MRI(Siemens Sonata Vision 1.5 T) examination with and without contrast enhancement. Contrast was enhanced by injections of Magnevist (469 mg/ml, Schering Nordiska). Bone destruction, sclerosis, and signs of inflammation were the main parameters studied. Results: In the preliminary results, average pain intensity was 6.3 on a numerical rating scale(NRS) and average pain duration was 3,6 years. 83% exhibited somatosensory abnormalities. Bone destruction not visible in the intraoral and panoramic radiographs was detected with CBCT in 40% (4/10) of the patients diagnosed with AO, and signs of inflammation were detected in the MRIs of 20% (2/10) of the patients diagnosed with AO. Conclusion: Preliminary findings indicate that CBCT and MRI can provide additional information to conventional radiography in the diagnosis of intraoral orofacial pain. Further studies with larger sample sizes of AO and SAP patients are necessary to determine the clinical relevance of these findings.

12 1 - 50 av 61
RefereraExporteraLänk till träfflistan
Permanent länk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf