关键词: GuttaFlow2垂直加压充填, 桩道预备, 根尖封闭性, 透明牙技术

Abstract:

Objective To evaluate the apical sealing ability before and after post space preparation with GuttaFlow2 vertical condensation obturation in isolated teeth with single canal. Methods One hundred isolated teeth were selected and randomly divided into 8 groups. Group A1 and A2: GuttaFlow2 vertical condensation obturation (n=15); Groups B1 and B2: continuous wave of vertical condensation obturation (n=15); Group C1 and C2: cold lateral condensation obturation (n=15); Group D: the positive controls (n=5); Group E: the negative controls (n=5). Post space was not prepared in groups A1, B1 and C1, but prepared in groups A2, B2 and C2. The apical sealing before and after post space preparation was evaluated by transparent dental technology. Results Without post space preparation, the differences between A1, B1 and C1 three groups were all significant (P<0.05). With post space preparation, the differences between A2, B2 and C2 three groups were significant (P<0.05). Among groups with the same filling method, there was no statistically significant difference between A1 and A2 (P>0.05), but there was statistically significant difference between B1 and B2, C1 and C2 (P<0.05). Conclusion The apical sealing ability of GuttaFlow2 vertical condensation obturation is better than the continuous wave of vertical condensation obturation and the cold lateral condensation obturation. There is no difference in apical sealing ability before and after post space preparation with GuttaFlow2 vertical condensation obturation. GuttaFlow2 vertical condensation obturation has good root canal obturation effect.

Key words: GuttaFlow2 vertical condensation obturation, post space preparation, apical sealing ability, transparent dental technology