Comparison of Postoperative Pain in Single-Rooted Teeth With Asymptomatic Apical Periodontitis Using Two Bioceramic Sealers and Two Different Root Canal Tapers: A Single-Blind Randomized Controlled Trial

Postoperative pain is the most common occurrence after endodontic treatment. It occurs mainly due to mechanical, chemical or microbial injury to periapical tissues. Root canal sealers plays a crucial role in this regard by coming in contact with periapical tissues through apical foramen and lateral canals causing a localised inflammation with direct influence on degree of post-operative pain based on composition of sealers. In this regard, bioceramic sealers offer a major advantage of biocompatibility and ability to form a hermetic seal. Furthermore, bioceramic sealers enhance endodontic treatment outcomes by differentiation of odontoblasts and release of bioactive substances which aid in periapical healing. Many authors have reported apical preparations to sizes larger than recommended to completely disinfect the root canal. On the contrary, it is often argued that larger preparation size results in unnecessary removal of dentin leading to weakening of tooth structure. Recently, new injectable Bioceramic sealers have been developed possessing better properties like uniform consistency and flow which allow them to penetrate into irregularities and accessory canals of root canal system, ultimately improving the quality of obturation and endodontic outcome. No literature was found which compared the effect of root canal tapers on postoperative pain using BioActive RCS root canal sealer which is relatively new Bioceramic sealer. Hence this study is designed.