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Effect of high temperature on crowns as post-endodontic restoration in forensic analysis: An in vitro study


S. G. Khirtika , Sindhu Ramesh

Abstract

Fire is one of the most common causes of morbidity and mortality throughout the world. When physical or finger print identification is not possible in cases of massive disasters, forensic odontology comes into play. Teeth restored with crowns serve as a valuable tool in such situations. The aim of this study was to assess the effects of high temperature on endodontically treated teeth restored with all (zirconia) and metal ceramic crowns. This study was conducted on 9 extracted molars and premolars, which were divided into two groups. Group 1: Endodontically treated molars and premolars restored with all-ceramic crown and Group 2: Endodontically treated molars and premolars restored with metal ceramic crowns. In this study, at 400 and 800°C, there were color changes in both the crowns placed and also disintegration of the teeth. Beyond 1100°C, the tooth completely disintegrated leaving behind both the crowns suggestive of its remarkable aid in forensic analysis. This study can, therefore, imprint the importance of pre-planned and systematic approach toward preservation of dental records as it proves to be a good evidence of identification.



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