Success rates of prosthetic restorations on endodontically treated teeth; a systematic review after 6 years

Abstract

The aims of this systematic review were to investigate the success rates of prosthetic restorations on endodontically treated teeth and their manner of failure. PubMed and hand literature searches were conducted on studies published until June 2012. Only clinical studies on human subjects referring to the success rates of prosthetic restorations on endodontically treated teeth with a follow-up period of at least 6 years were reviewed. A total of four studies were identified. Meta-analysis showed the success rate to be 92% (CI 82-98%) for single crowns on endodontically treated teeth and 79% (72-86%) for fixed dental prostheses. Only one study reported on removable dental prostheses with a success rate of 66%. Single crowns on teeth restored without posts demonstrated a success rate of 94% (CI 84-99%), whereas where posts were placed, the success rate was lower (92% CI 82-98%). Single crowns over cast post-and-cores and prefabricated posts showed success rates of 93% (CI 82-99%) and 94% (CI 90-97%), respectively; both differences were not statistically significant (significance level of 5%). The most common reason for failure was post-debonding. Single crowns seem to be the best treatment modality for endodontically treated teeth. However, due to the low number of studies included and their design, the results of this systematic review should be interpreted with caution. Further clinical studies are needed to provide high-quality evidence on the topic.

Post-Retained Single Crowns versus Fixed Dental Prostheses: A 7-Year Prospective Clinical Study

“…This findings are in agreement with a substantial number of previously published studies (Ferrari et al 2012a;Guldener et al 2017;Juloski et al 2014b;Sterzenbach et al 2012) and reviews (Cagidiaco et al 2008b;Ploumaki et al 2013) on the clinical performances of fiber-post restored teeth.…”

Effect of restoration technique on stress distribution in extensively destroyed premolars: a finite element analysis study

“…To the contrary, a recent trend has been perceived in the use of materials with biomechanical properties similar to those of the dental structures, particularly those supported by a body of scientific laboratory evidence 23 . Nevertheless, the clinical performance of these two types of retainers was similar after 3 years of follow-up 24 , with comparable success rates in systematic reviews 4,22 . In addition to selecting the correct retainer, clinical procedures must always be adopted to reduce the stress arising from occlusal loading, such as the correct occlusal adjustment and reduction in cusp height of posterior teeth 25 .…”

“…In the scientific literature there are still controversies about the increase in susceptibility to fracture of teeth, and the use of intracanal retainers to increase the strength of debilitated roots after endodontic therapy [1][2][3][4] . Clinically, it has been verified that when teeth without intraradicular retainers have been restored with total crowns, their longevity was shown to be greater that of teeth restored with these retainers.…”

Influence of elastic modulus of intraradicular posts on the fracture load of roots restored with full crowns

“…To select the most suitable post it is necessary to consider many factors like the position of the tooth, degree of dental destruction and type of restoration to be placed 5 . Different post systems options with diverse elastic modulus are available for restoration of endodontically treated teeth.…”