Comparison of Shaping Ability of Five Ni-Ti Rotary Instruments in Simulated Root Canals.

doi:10.13701/j.cnki.kqyxyj.2017.03.013

Abstract

Abstract: Objective: To compare the shaping ability of five Ni-Ti rotary instruments in simulated root canals. Methods: Fifty resin blocks were distributed into five groups (n=10), and prepared using ProTaper (group 1), Reciproc (group 2), TFA (group 3), WaveOne Gold (group 4), and M3 (group 5) respectively. The preparation time of each group was measured. Standardized photographs were taken before and after the instrumentation, and then they were superimposed using Adobe photoshop. The changes of the canal curvature and the centering ability were measured. Data were analyzed by SPSS 17.0. Results: The preparation time of group 3 was the shortest. Group 1 had the highest apical transportation. At the curved part, the canal transportation of group 3 and group 5 were significantly smaller than the other systems (P<0.05). Conclusion: TFA was capable of preparing the root canal quickly and efficiently. M3 showed excellent shaping ability and the ProTaper system showed the highest canal transportation.

Key words: Apical transportation , Root canal preparation , Curved root canal

CLC Number:

R781.33

YU Xiao-qing, LIU Yu-fei, GUO Shi-bo, FENG Rui-ming, ZHU Meng-ying, XUE Ming.. Comparison of Shaping Ability of Five Ni-Ti Rotary Instruments in Simulated Root Canals.[J]. Journal of Oral Science Research, 2017, 33(3): 286-289.

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