Longevity of 2- and 3-surface restorations in posterior teeth of 25- to 30-year-olds attending Public Dental Service-A 13-year observation

Journal of Dentistry
Ulla PalotieMiira Vehkalahti

Abstract

The aim of this patient document-based retrospective study among 25- to 30-year-old Finnish adults was to evaluate longevity of 2- and 3-surface posterior restorations according to type of tooth, size of restoration, and restorative material used. Data were extracted from electronic patient files of the Helsinki City Public Dental Service (PDS), Finland. A total of 5542 2- and 3-surface posterior composite and amalgam restorations were followed indirectly from 2002 to 2015. Longevity of restorations was illustrated using Kaplan-Meier curves. Annual failure rates (AFRs) of the restorations were calculated separately by type of tooth, size, and material. Differences in longevity were statistically tested with log-rank tests. Composite restorations formed the majority (93%). The longest median survival times and the smallest failure rates were found for teeth in the upper jaw, for premolars, and for 2-surface restorations. Median survival time of all restorations was 9.9 years (95% CI 9.6, 10.2) and re-intervention of restorations occurred less often in the maxilla (AFR 4.0%) than in the mandible (AFR 4.7%). Median survival time of composite restorations was greater for 2-surface than for 3-surface restorations: in premolars 12.3 ...Continue Reading

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Citations

Feb 24, 2019·British Dental Journal·F J Trevor BurkeSiobhan Creanor
Feb 20, 2020·Acta Odontologica Scandinavica·Ulla Palotie, Miira M Vehkalahti
Jul 23, 2020·International Dental Journal·Richard B PriceBraden Sullivan
May 11, 2018·British Dental Journal·P S K Lucarotti, F J T Burke
Dec 8, 2019·International Dental Journal·Donna C UmesiJohn O Makanjuola
Jul 25, 2021·Clinical Oral Investigations·Franck DecupBrigitte Grosgogeat
Sep 16, 2019·Computers in Biology and Medicine·Richard J WierichsEnno J Kramer

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