A comparison of dimensional standard of several nickel-titanium rotary files
김기원, 조경모, 박세희, 최기열, Karabucak Bekir, 김진우,
소속 상세정보
김기원 ( Kim Ki-Won ) - Gangneung-Wonju National University College of Dentistry Department of Conservative Dentistry
조경모 ( Cho Kyung-Mo ) - Gangneung-Wonju National University Department of Conservative Dentistry
박세희 ( Park Se-Hee ) - Gangneung-Wonju National University Department of Conservative Dentistry
최기열 ( Choi Ki-Yeol ) - Gangneung-Wonju National University College of Dentistry Department of Dental Biomaterials
( Karabucak Bekir ) - University of Pennsylvania School of Dental Medicine Department of Endodontics
김진우 ( Kim Jin-Woo ) - Gangneung-Wonju National University Department of Conservative Dentistry
KMID : 1034420140390010007
Abstract
Objectives: The aim of this study was to compare the dimensional standard of several nickel-titanium (Ni-Ti) rotary files and verify the size conformity.
Materials and Methods: ProFile (Dentsply Maillefer), RaCe (FKG Dentaire), and TF file (SybronEndo) #25 with a 0.04 and 0.06 taper were investigated, with 10 in each group for a total of 60 files. Digital images of Ni-Ti files were captured under light microscope (SZX16, Olympus) at 32×. Taper and diameter at D1 to D16 of each files were calculated digitally with AnalySIS TS Materials (OLYMPUS Soft Imaging Solutions). Differences in taper, the diameter of each level (D1 to D16) at 1 mm interval from (ANSI/ADA) specification No. 101 were statistically analyzed using one-way ANOVA and Scheffe’s post-hoc test at 95% confidence level.
Results: TF was the only group not conform to the nominal taper in both tapers (p < 0.05). All groups except 0.06 taper ProFile showed significant difference from the nominal diameter (p < 0.05).
Conclusions: Actual size of Ni-Ti file, especially TF, was different from the manufacturer’s statements.
키워드
Diameter; Ni-Ti rotary files; Size verification; Taper; TF
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