Longevity of composite build-ups without posts—10-year results of a practice-based study
Abstract
Aim
The
aim of this prospective, non-interventional, multi-center,
practice-based study was, firstly, to evaluate the longevity of
composite build-ups in endodontically treated teeth (ETT) without post
placement and, secondly, to analyze factors influencing the success of
these composite build-ups.
Methodology
Each
of seven general dental practitioners placed up to 50 composite
build-ups without additional posts in ETT. Teeth were restricted to
incisors, canines, and premolars. Several clinical data were recorded
for 192 coronal restorations on ETT in 192 patients. Cox proportional
hazard models were applied to analyze associations between clinical
factors and time until failure.
Results
Within
a follow-up period of 10 years, 167 restorations were judged as
successful [mean success time, 110 (105–115) months] and 180 teeth
survived [mean survival time, 114 (110–119) months]. The main failure
type was fracture of the restoration (n = 15).
The annual failure rate was 2.4%. In bivariate Cox regression, both
factors such as number of restored tooth surfaces and adhesive were
significantly associated with the failure rate. In multivariate Cox
proportional hazards regression, none of the investigated factors were
significantly associated with the failure rate.
Conclusion
For
composite build-ups in ETT without post placement, high success rates
could be found after up to 10 years of observation time. Within the
limitations of the present study, none of the analyzed factors such as
“tooth type” or “number of restored tooth surfaces” was a significant
predictor for the failure rate.
Clinical relevance
Endodontically
treated teeth can be successfully directly restored with composite
build-ups even when no additional post is inserted.
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