Objectives: Complete obturation of the root canal with an inert filling material and creation of a hermetic, apical seal is a prime goal for successful endodontic treatment. Incomplete obturation of the root canal has been found to cause 60% of endodontic failures . The aim of this study was to investigate the sealing ability of thermoplasticized gutta-percha core systems; Soft-Core and Thermafil techniques and compare with lateral condensation technique in curved canals. Methods: For this purpose 42 mesials curved canals of mandibular molars were used, instrumented and obturated by each technique (n=12). Six teeth served as control groups. The teeth were stored in distilled water at 37C for 1 week. After storage the root surfaces were coated with two layers of nail polish, with exception of the apical 1mm. of the teeth. The teeth were immersed in 2 % methylene blue for 48 hours and then cleared. The apical dye penetration were measured and statistically analyzed (Mann-Whitney U and Kruskal-Wallis Tests). Results: Lateral condensation showed the most microleakage. (p<0.05).Although Thermafil showed less leakage than Soft Core technique the difference was not significant (p>0.05). Conclusion: According to the result of this study, both two thermoplasticized core systems found superior to lateral condensation technique.

Back to the Dental Materials: VIII - Others-Non-metallic Program
Back to the 81st General Session of the International Association for Dental Research (June 25-28, 2003)

Top Level Search