Objective: This study compared the compressive strength and flexural strength of Centurion N with other conventionally used restorative materials.Materials and methods: Cention N, Amalgam, Glass Ionomer Cement and Hybrid composite resin was used for sample fabrication. A total of 80 specimens were prepared. Forty samples (n = 10 each) were prepared for compressive strength and other 40 samples (n = 10 each) were prepared for flexural strength using aluminum split molds.The samples were tested using a universal Instron testing machine (UTM). Data were statistically analyzed using the Games-Howell post hoc test to determine whether statistically significant differences (p < 0.05) existed among the various restorative materials.Results: Compressive strength and flexural strength of composites was significantly higher than cention N, GIC, and amalgam. Compressive strength of cention N was significantly higher than GIC. Flexural strength of cention N was found to be significantly higher than GIC and Amalgam. Conclusion:Within the limitations of this study, it can be concluded that composite had the highest compressive strength and flexural strength of the four materials tested. However, cention N can be used in various restorative procedures in daily dental practice as a basic filling material along with tooth matching ability, it has good comparable mechanical properties and unlike composite, it's economical to patients.

Aim The aim of this study was to evaluate the bond strength and thereafter analyze the mode of failure of the three sealers applied to smear free radicular dentine with final drying using 70% isopropyl alcohol and paper points. Materials and methods A total of sixty root canals were prepared and then segregated into two groups ( n = 30) as per the drying protocol, namely paper points or 70% isopropyl alcohol. Then, these roots were divided into three sub-groups ( n = 10) with respective sealers and obturation materials, namely AH Plus and gutta-percha (AH/GP), EndoSequence BC and gutta-percha (EBC/GP), and MTA Fillapex and gutta-percha (MFP/GP). The roots were then sectioned from each third, and the push-out test was performed. Failure modes were examined under a stereomicroscope. Data were statistically analyzed by 2-way analysis of variance post hoc Tukey tests with a significant level of 5%. Results Overall canals dried with isopropyl alcohol showed higher bond strength values than paper point ( p < 0.05). The AH/GP group showed lower bond strength than EBC/GP ( p < 0.05) but higher than MFP/GP ( p < 0.05). The most frequent type of failure was cohesive in the AH/GP group and adhesive in the EBC/GP group whereas MFP/GP had almost similar adhesive and cohesive failures. Conclusion Seventy percent isopropyl alcohol drying improved the bond strength of the root canal sealers with the dentinal tubules better than the ideal paper point drying. How to cite this article Khurana N, Chourasia HR, et al. Effect of Drying Protocols on the Bond Strength of Bioceramic, MTA and Resin-based Sealer Obturated Teeth. Int J Clin Pediatr Dent 2019;12(1):33–36.