A practice-based study on the survival of restored endodontically treated teeth

JA Skupien, N Opdam, R Winnen, E Bronkhorst… - Journal of …, 2013 - Elsevier
JA Skupien, N Opdam, R Winnen, E Bronkhorst, C Kreulen, T Pereira-Cenci, MC Huysmans
Journal of endodontics, 2013•Elsevier
Introduction This retrospective study evaluated the survival of endodontically treated teeth
(ETTs) and investigated factors influencing restoration and tooth survival. Methods Data from
795 ETTs were recorded, and success (restoration still intact) and survival (restoration intact
or failed/repaired/replaced and tooth still in situ) were analyzed using Kaplan-Meier
statistics. A multivariate Cox regression analysis was performed to assess the variables
influencing success and survival. Results At the end of the observation period (mean …
Introduction
This retrospective study evaluated the survival of endodontically treated teeth (ETTs) and investigated factors influencing restoration and tooth survival.
Methods
Data from 795 ETTs were recorded, and success (restoration still intact) and survival (restoration intact or failed/repaired/replaced and tooth still in situ) were analyzed using Kaplan-Meier statistics. A multivariate Cox regression analysis was performed to assess the variables influencing success and survival.
Results
At the end of the observation period (mean observation time = 4.48 years), 45 teeth had been extracted (annual failure rate for survival = 1.9% at 9.6 years) and 114 restorations had received a restorative follow-up treatment (annual failure rate for success = 4.9% at 9.6 years).
Conclusions
ETTs showed acceptable survival and success in the long-term. Variables showing significant influence on survival were the number of teeth in the dentition and the presence of decay at the moment the patient entered the practice.
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