TORSIONAL PROPERTIES OF THE CANAL MASTER INSTRUMENT

被引：12

作者：

MASSA, GR

NICHOLLS, JI

HARRINGTON, GW

机构：

[1] UNIV WASHINGTON,DEPT ENDODONT SM-48,SEATTLE,WA 98195

[2] UNIV WASHINGTON,SCH DENT,GRAD ENDODONT PROGRAM,SEATTLE,WA 98195

[3] UNIV WASHINGTON,SCH DENT,DEPT RESTORAT DENT,SEATTLE,WA 98195

来源：

JOURNAL OF ENDODONTICS | 1992年 / 18卷 / 05期

关键词：

D O I：

10.1016/S0099-2399(06)81264-1

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

The torsional properties of a new type of endodontic hand instrument, the Canal Master, were compared with conventional machined K-type endodontic files. Sizes 20 through 50 were tested in clockwise (CW) and counterclockwise (CCW) directions. Canal Master instruments exhibited significantly less torque at yield and at failure in both the CW and CCW directions. Rotation at failure was significantly greater for the Canal Master instruments in both CW and CCW directions. There was no significant difference in either torque or the amount of rotation for the Canal Master instruments when comparing CW versus CCW rotation. There was no clinically visible evidence of deformation of the Canal Master instruments prior to torsional failure.

引用

页码：222 / 227

页数：6

共 12 条

[1]

Chernick L B, 1976, J Endod, V2, P94, DOI 10.1016/S0099-2399(76)80146-X

[2]

Craig R.G., 1963, ORAL SURG ORAL MED O, V16, P206, DOI [10.1016/0030-4220(63)90034-3, DOI 10.1016/0030-4220(63)90034-3]

[3]

Craig R.G., 1962, ORAL SURG ORAL MED O, V15, P213, DOI [10.1016/0030-4220(62)90012-9, DOI 10.1016/0030-4220(62)90012-9]

[4] BENDING AND TORSION OF ENDODONTIC FILES WITH RHOMBUS CROSS-SECTIONS [J].