Comparative Evaluation of Fracture Resistance of Bioceramics as Obturating Material with and without Guttapercha

Abstract

Background and Aim Bioceramic sealers have revolutionized endodontic practice. However their use as obturating materials has not yet been evaluated. Therefore the present study aimed to evaluate the fracture resistance of root filled teeth obturated with bioceramic-based sealer BioRoot RCS epoxy resin AH plus and Zinc oxide eugenol ZOE based sealers with and without guttapercha using various obturation techniques.Methods Ninety human single-rooted mandibular premolar teeth were extracted decoronated and standardized to a root length of 13 mm. The teeth were instrumented using the Neoendo flex rotary system up to an apical size of 25. Subsequently the specimens were divided into three groups n30 based on the obturation materials and techniques employed. Group 1 Lateral condensation with 0.02 guttapercha LC Group 2 Single cone obturation with 0.06 gutta-percha SC Group 3 Complete sealer obturation without gutta-percha CS. Each experimental group was divided into three sub-groups n10 using following sealersA ZOE B AH plus C BioRoot RCS. The specimens were coronally sealed with Cavit mounted in an acrylic mould and fracture resistance was determined using Universal testing machine and the obtained values were tabulated. Statistical analysis was done using One-way ANOVA and post hoc Tukey tests P le0.05.Results Among the experimental groups subgroup 1C Lateral condensation with bioceramic sealer showed the highest fracture resistance and no significant difference was found between 1C and 2C Single cone GP while subgroup A ZOE showed least resistance among all groups.Conclusion The absence of gutta-percha with bioceramic sealer resulted in reduced fracture resistance. Conversely the use of gutta-percha in conjunction with bioceramic sealer through lateral condensation and single cone techniques enhanced the resistance to fracture in endodontically treated teeth.