Glide Path Management of Rotary Nickel-titanium Instruments in Simulated Root Canals

doi:10.13701/j.cnki.kqyxyj.2018.02.004

Abstract

Abstract: Objective: To compare the shaping ability of Scout RaCe, Hyflex GPF,S3 Superpass,PathFile and stainless steel K-file in simulated root canals. Methods: A total of 40 resin blocks were divided randomly into five groups (n=8), each of which was prepared with the corresponding instrument. Preparation time was recorded. Pre- and postoperative images were superimposed. And the material removal from the inner and outer canal walls was measured from the apexusing ImageJ to determine the centering ability. The data were analyzed using the One-way ANOVA at a significance level of P<0.05. Results: Preparation time for Scout RaCe and S3 Superpass was the shortest. For resin removal from the inner wall at the curvature portion and from the outer wall at the apical portion, Scout RaCeand Hyflex GPF exhibited much less cutting quantity than S3 Superpassdid.Moreover, Scout RaCe and Hyflex GPF demonstrated superior centering ability than S3 Superpasss. Conclusion: Scout RaCe and Hyflex GPF showed the least root canal removal and the best centering ability. S3 Superpass created more removal and its centering ability was comparable to PathFile.

Key words: Glide path, Shaping ability, Simulated root canals, Nickel-titanium instruments, CM-wire

CLC Number:

R780.1

HAN Yi, BAI Yu-hao, HOU Xiao-mei. Glide Path Management of Rotary Nickel-titanium Instruments in Simulated Root Canals[J]. Journal of Oral Science Research, 2018, 34(2): 121-124.

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