COMPARATIVE STUDY ON APICAL SEALING ABILITY: LATEST NOVEL SEALER VERSUS TRADITIONAL SEALERS WITH BIOCOMPATIBLE OBTURATION SYSTEM AN IN-VITRO STUDY
Abstract
Obturation of root canal system is the most important step in successful root canal treatment. It is defined as, the three dimensional filling of the entire root canal system as close to the cementodentinal junction as possible[1] . The purpose of obturation is to seal the cleaned, shaped and disinfected root canal system and to prevent re-infection good obturation should create a good seal; this includes apical and coronal seal as well as lateral seal. There have been several materials and techniques developed to achieve [2] .However, irregularities such as fins, isthmuses, and lateral canals are often present and can pose challenges to clinicians during obturation[3]. Hermetic apical seal are the goals of endodontic treatments, which cannot be obtained without using a sealer because gutta-percha does not bond to dentin walls and the sealer is capable of filling imperfections and increasing the adaptation[4]. Recently, bioceramics have gained popularity in the modern practice of endodontics because of their physicochemical and biological properties3 & resin based sealers are formulations to improve the characteristics such as flow, setting time, and adhesion, allowing their use as endodontic sealers[5]. resin–based sealers that are specifically designed for endodontic application. This genre of bondable root canal sealers has been aggressively promoted with the highly desirable property of creating monoblocks within the root canal space. Gutta percha does not chemically bond to the dentin wall hence, does not fulfill the ideals of monoblock system. The term monoblock refers to the scenario wherein the canal space become perfectly filled with a gap-free, solid mass that consists of different materials and interfaces, with the purported advantages of simultaneously improving the seal and fracture resistance of the filled canals
