2010 Volume 31 Issue 3 Pages 229-234
Abstract : The present study assessed warm vertical obturation and evaluated the sealing ability of canals filled with resin-based sealer and gutta-percha by ObturaⅡTM. A total of 72 plastic standard teeth were used and were divided into two groups of 36 teeth. In group 1, root canals were filled with gutta-percha/Epiphany and in group 2 with gutta-percha/AH plus jet sealer. The mean penetration of gutta-percha was measured until the root apex by an Olympus SZX16 microscope with DP71 digital camera. The sealing ability of obturation was evaluated by the dye leakage test. All canals were obturated, and the teeth were sectioned horizontally at 1, 3, and 5 mm from the root apex. Sections were taken by a digital microscope, and the proportion of core material in each canal was quantified. A one-way analysis of variance (ANOVA) and Scheffe test were used to compare and identify any statistically significant differences at p<0.05. The results indicated that both types of gutta-percha completely penetrated to the root apex, and the sealing ability of both Epiphany and AH plus jet was significantly high in both groups. The proportion of both types of gutta-percha was more than 83% at 1 mm, and more than 94% at 3 and 5 mm from the apex. It was concluded that gutta-percha/Epiphany and gutta-percha/AH plus jet obturation showed significantly less leakage with warm vertical obturation by ObturaⅡ.
