Effect of rotational speed on nickel-titanium file distortion

被引：52

作者：

Gabel, WP ^{[1
]}

Hoen, M ^{[1
]}

Steiman, HR ^{[1
]}

Pink, FE ^{[1
]}

Dietz, R ^{[1
]}

机构：

[1] Univ Detroit Mercy, Sch Dent, Detroit, MI 48221 USA

来源：

JOURNAL OF ENDODONTICS | 1999年 / 25卷 / 11期

关键词：

D O I：

10.1016/S0099-2399(99)80124-1

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

Separation of instruments while performing root canals is something that has plagued all practitioners. The purpose of this study was to evaluate the effect of rotational speed on nickel-titanium file distortion and separation. Forty extracted human molars were instrumented with Profile (Dentsply Tulsa Dental Products, Tulsa, OK) ISO .04 rotary nickel-titanium instruments at 166.67 or 333.33 rpm. The instruments were evaluated after instrumentation for separation and/or distortion. The results of this study were statistically significant and indicate that file distortion and/or separation is four times as likely to occur at 333.33 rpm vs. 166.67 rpm.

引用

页码：752 / 754

页数：3

共 6 条

[1] TORSIONAL AND STIFFNESS PROPERTIES OF NICKEL-TITANIUM K-FILES [J].