Survival rates against fracture of endodontically treated posterior teeth restored with full-coverage crowns or resin composite restorations: a systematic review

Abstract

This systematic review aims to summarize the current clinical studies that investigated survival rates against fracture of endodontically treated posterior teeth restored with crowns or resin composite restorations. Literature search were performed using keywords. Publications from 1980 to 2016 were searched in PubMed, ScienceDirect, Web of Science, MEDLINE, and SCOPUS. Included studies were selected based on inclusion and exclusion criteria. Three clinical studies were included: 1 randomized controlled trial and 1 prospective and 1 retrospective cohort studies. Pooled survival rates ranged from 94%–100% and 91.9%–100% for crowns and resin composite, respectively. The majority of teeth had no more than 3 surface loss of tooth structure. The studies included were heterogeneous, and were not appropriate for further meta-analysis. Current evidence suggested that the survival rates against the fracture of endodontically treated posterior teeth restored with crowns or resin composites were not significantly different in the teeth with minimum to moderate loss of tooth structure.

Endodontically treated posterior teeth restored with or without crown restorations: A 5‐year retrospective study of survival rates from fracture

“…ETT have a higher risk of tooth fracture with a lower remaining coronal structure . If restored with resin composites, ETT with more surrounding tooth structure to support the restoration tend to be less fractured …”

“…The fracture of ETT can be categorized as restorable and unrestorable . ETT with restorable fracture can be repaired or replaced with a restoration; either a resin composite or crown.…”

“…12 If restored with resin composites, ETT with more surrounding tooth structure to support the restoration tend to be less fractured. 2,6 The fracture of ETT can be categorized as restorable and unrestorable. 6 ETT with restorable fracture can be repaired or replaced with a restoration; either a resin composite or crown.…”

“…2,6 The fracture of ETT can be categorized as restorable and unrestorable. 6 ETT with restorable fracture can be repaired or replaced with a restoration; either a resin composite or crown. In contrast, ETT with unrestorable fracture requiring tooth extraction are more critical and should be prevented.…”

Fracture resistance, gap and void formation in root‐filled mandibular molars restored with bulk‐fill resin composites and glass‐ionomer cement base

“…Endodontically treated teeth (ETT) are weakened from extensive carious damage or pre‐existing restoration, which increases susceptibility to fracture . A proper coronal restoration should be placed after completion of endodontic treatment to protect ETT from fracture …”