Analysis of Reasons for Extraction of Endodontically Treated Teeth: A Retrospective Study

Abstract

Endodontic therapy is a predictable treatment, resulting in up to 97% retention rate for the treated teeth. However, about 3% of endodontically treated teeth require further treatment, including extraction of the tooth, periapical surgery . The purpose of this prospective study was to analyse the factor related to extraction of endodontically treated teeth. This study was an institutional study, conducted in a private institution. The sample size for this study taken was 1068 teeth. Data regarding all the cases completed between June 2019 to March 2020 were retrieved from the case records of a private dental institution. Data that was retrieved were cross-verified by two reviewers. Data evaluation was done by assessing dental records of various reasons for extraction of endodontically treated teeth. The data collected was analysed using a Chi-square test, the data was tabulated in excel and the statistics were done in SPSS V20. Most common type of extraction was normal method followed by transalveolar extraction. Most common reason for extraction was grossly decayed followed by RCT treated followed by attrition and grade 3 mobility.The maxillary upper molars was the most common tooth to be extracted followed by mandibular molars. Endodontically treated teeth were prone to extraction mainly due to nonrestorable carious destruction and to a lesser extent to endodontic-related reasons such as endodontic failure, Vertical root fracture, or iatrogenic perforation