REMAINING DENTIN CEMENTUM THICKNESS AFTER HAND OR ULTRASONIC INSTRUMENTATION

被引：25

作者：

MCCANN, JT

KELLER, DL

LABOUNTY, GL

机构：

[1] WALTER REED ARMY MED CTR,ENDODONT SERV,WASHINGTON,DC 20307

[2] 768TH MED DETACHMENT DENT SERV,ENDODONT SERV,MANNHEIM,GERMANY

来源：

JOURNAL OF ENDODONTICS | 1990年 / 16卷 / 03期

关键词：

D O I：

10.1016/S0099-2399(06)81584-0

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

A quantitative study was undertaken to measure remaining dentin/cementum thickness after using step-down, step-back hand instrumentation or ultrasonically energized instrumentation techniques. A model system was used which enabled the same canal system of extracted human mandibular molars to be accurately evaluated and measured before and after instrumentation. Although no statistical difference was demonstrated in the encroachment upon the furcal aspect of mesial roots of mandibular molars, both techniques came dangerously close to creating stripping and perforations in a high percentage of cases. © 1990 American Association of Endodontists.

引用

页码：109 / 113

页数：5

共 19 条

[1] PREPARATION OF SPACE FOR POSTING - EFFECT ON THICKNESS OF CANAL WALLS AND INCIDENCE OF PERFORATION IN MOLARS [J].