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Incident injury is strongly associated with subsequent incident temporomandibular disorder: results from the OPPERA study.
Malmö University, Faculty of Odontology (OD). Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, Buffalo, NY, United States; Department of Oral Diagnostic Sciences, School of Dental Medicine, University at Buffalo, Buffalo, NY, United States.ORCID iD: 0000-0002-1887-7420
Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, Buffalo, NY, United States.
Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, Buffalo, NY, United States.
Department of Biostatistics, School of Public Health and Health Professions, University at Buffalo, Buffalo, NY, United States.
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2019 (English)In: Pain, ISSN 0304-3959, E-ISSN 1872-6623, Vol. 160, no 7, p. 1551-1561Article in journal (Refereed) Published
Abstract [en]

Cross-sectional studies confirm, as expected, a positive association between jaw injury and painful temporomandibular disorders (TMDs), but prospective evaluations are lacking. We prospectively assessed incident jaw injury, injury type, and development of TMD in adults aged 18 to 44 years. Data were collected from 3258 individuals from communities surrounding 4 US academic institutes between 2006 and 2008. At enrollment, participants reported no TMD history and no facial injuries in the previous 6 months. Quarterly, follow-up questionnaires assessed incident jaw injury, which was classified as intrinsic (attributed to yawning or prolonged mouth opening) or extrinsic (attributed to other causes). Examiners classified incident TMD during a median follow-up period of 2.8 years (range 0.2-5.2 years). Cox regression models used jaw injury as a time-dependent covariate to estimate hazard ratios (HRs) and 95% confidence intervals (CIs) for the association with incident TMD. Among 1729 participants with complete data, 175 developed TMD. Eighty percent of injuries were intrinsic. Temporomandibular disorder annual incidence was nearly twice as high in those experiencing jaw injury (5.37%) compared with those who did not (3.44%). In the Cox model that accounted for timing of injury, the corresponding HR was 3.94 (95% CI = 2.82-5.50) after adjusting for study site, age, race, and sex. Hazard ratios did not differ (P = 0.91) for extrinsic injuries (HR = 4.03, 95% CI = 2.00-8.12) and intrinsic injuries (HR = 3.85, 95% CI = 2.70-5.49). Jaw injury was strongly associated with incident TMD. If surveillance and intervention after jaw injury is to be effective in preventing TMD, they should focus on both intrinsic and extrinsic injuries.

Place, publisher, year, edition, pages
Lippincott Williams & Wilkins Ltd. , 2019. Vol. 160, no 7, p. 1551-1561
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Medical and Health Sciences
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URN: urn:nbn:se:mau:diva-15629DOI: 10.1097/j.pain.0000000000001554ISI: 000480763500009PubMedID: 30883525Scopus ID: 2-s2.0-85068537877Local ID: 29510OAI: oai:DiVA.org:mau-15629DiVA, id: diva2:1419151
Available from: 2020-03-30 Created: 2020-03-30 Last updated: 2024-06-17Bibliographically approved

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Sharma, Sonia

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