Retrospective analysis on the repair vs. replacement of composite restorations

•Repairs are suitable to increase the survival of restorations.•Longevity of repaired and replaced restorations is comparable.•Longevity depends on various patient- and tooth-related variables. Our retrospective study aimed to assess the impact of repairs on the longevity of anterior and posterior d...

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Bibliographic Details
Published in:Dental materials 2020-01, Vol.36 (1), p.108-118
Main Authors: Kanzow, Philipp, Wiegand, Annette
Format: Article
Language:English
Subjects:
Composite materials
Composite Resins
Dental implants
Dental Restoration Failure
Dental Restoration, Permanent
Dentistry
Failure analysis
Failure rates
Humans
Longevity
Minimally invasive dentistry
Rank tests
Regression analysis
Repair
Restoration repair
Restorative dentistry
Retrospective Studies
Statistical analysis
Statistical tests
Success
Survival
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Summary:•Repairs are suitable to increase the survival of restorations.•Longevity of repaired and replaced restorations is comparable.•Longevity depends on various patient- and tooth-related variables. Our retrospective study aimed to assess the impact of repairs on the longevity of anterior and posterior direct composite restorations and to compare longevity of repaired and replacement restorations. Patient records were retrospectively screened for anterior and/or posterior composite restorations with 2+ surfaces placed in permanent teeth between 2000 and 2015. During follow-up, repaired and replaced restorations were assessed and mean annual failure rates (mAFR) calculated. Outcome was considered in three levels: Success (no further intervention), survival 1 (first repair=survival, second repair=failure) and survival 2 (more than one repair=survival, all surfaces repaired=failure). Statistical analysis was performed using Kaplan–Meier statistics, log-rank tests, and multi-variate Cox-regression analyses with shared frailty (p
ISSN:0109-5641
1879-0097
DOI:10.1016/j.dental.2019.11.001