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Microbial Leakage at Morse Taper Conometric Prosthetic Connection: An In Vitro Investigation
Department of Prosthetic Dentistry, School of Dentistry, University of Padova, Padova, Italy.
Malmö högskola, Faculty of Odontology (OD).ORCID iD: 0000-0002-9144-3442
Malmö högskola, Faculty of Odontology (OD).
Department of Prosthetic Dentistry, School of Dentistry, University of Padova, Padova, Italy.
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2017 (English)In: Implant Dentistry, ISSN 1056-6163, E-ISSN 1538-2982, Vol. 26, no 5, p. 756-761Article in journal (Refereed) Published
Abstract [en]

OBJECTIVE: To evaluate in vitro the sealing capability at the prosthetic connection interface of 2 conometric systems. MATERIALS AND METHODS: Two conometric systems with the same design and different material were used, for a total of 24 samples. Each sample was assembled by a tapered abutment and respective coping. In group A, the copings were made of gold, whereas in group B they were made of PEEK. Three μL of mix bacterial suspension (Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, and Fusobacterium nucleatum species) was inoculated into the abutment screw hole, and the coping was inserted on the abutment. Samples were immersed into culture tubes and incubated for 24, 48, and 72 hours into anaerobic conditions. Visual evaluation of turbidity was performed at each time point. Qualitative-quantitative assessment using real-time polymerase chain reaction was performed at 72 hours. Any difference between the groups was checked by means of Fisher exact test. RESULTS: Microbial leakage occurred in both groups, and there was no statistically significant difference between groups. Microbial concentration resulted in a presence inferior to 1 × 10 copies/μL in all positive assemblies. CONCLUSIONS: Because of the low bacterial count, it can be concluded that a minimal bacterial infiltration may be allowed by conometric interfaces for prosthetic connection.

Place, publisher, year, edition, pages
Lippincott Williams & Wilkins, 2017. Vol. 26, no 5, p. 756-761
Keywords [en]
dental implant, bacterial microleakage, bacterial count, Morse taper conometric system
National Category
Dentistry
Identifiers
URN: urn:nbn:se:mau:diva-15340DOI: 10.1097/ID.0000000000000657ISI: 000411682300016PubMedID: 28945671Scopus ID: 2-s2.0-85032010158Local ID: 23840OAI: oai:DiVA.org:mau-15340DiVA, id: diva2:1418861
Available from: 2020-03-30 Created: 2020-03-30 Last updated: 2024-03-27Bibliographically approved

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Stocchero, MicheleJimbo, Ryo

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