THE INFLUENCE OF DIFFERENT ROOT-CANAL INSTRUMENTS ON ROOT-CANAL PREPARATION - AN INVITRO STUDY

被引:39
作者
BRISENO, BM
SONNABEND, E
机构
[1] Department of Conservative Dentistry, University of Munich
关键词
D O I
10.1111/j.1365-2591.1991.tb00865.x
中图分类号
R78 [口腔科学];
学科分类号
1003 ;
摘要
Nine endodontic instruments from different manufacturers (Reamers, K-files, Hedstrom files, K-Flex files, Flexofiles, S-files, Burns Unifiles, Flexicut files and Flex-R files) were used to prepare 180 simulated root canals in resin blocks. The instrument's ability to reproduce a theoretical pre-established ideal canal shape was assessed by comparing the original canal path with the resulting enlarged canal shape by a double exposure photographic method. The individual ability of each instrument to transport debris was also observed during instrumentation under a stereomicroscope. Regardless of the instrument type, none was able to reproduce ideal results; however, clinically acceptable results could be obtained with all of them. The coronal and apical debris transportation characteristics proved to be similar with all instruments.
引用
收藏
页码:15 / 23
页数:9
相关论文
共 20 条
[11]  
Powell S.E., Wong P.D., Simon J.H.S., A comparison of the effect of modified and non‐modified instrument tips on apical canal configuration. Part II, Journal of Endodontics, 14, pp. 224-228, (1988)
[12]  
Roane J.B., Sabala C.L., Duncanson M.G., The ‘balanced force’ concept for instrumentation of curved canals, Journal of Endodon-tics, 11, pp. 203-211, (1985)
[13]  
Schilder H., Cleaning and shaping the root canal, Dental Clinics of North America, 18, pp. 269-296, (1974)
[14]  
Schneider S.W., A comparison of canal preparations in straight and curved root canals, Oral Surgery, Oral Medicine and Oral Pathology, 32, pp. 271-275, (1971)
[15]  
Sepic A.O., Pantera E.A., Neaverth E.J., Anderson R.W., A comparison of Flex‐R files and K‐type files for enlargement of severely curved molar root canals, Journal of Endodontics, 15, pp. 240-245, (1989)
[16]  
Southard D.W., Oswald R.J., Natkin E., Instrumentation of curved molar root canals with the Roane technique, Journal of Endodontics, 13, pp. 479-489, (1987)
[17]  
Walton R.E., Histologic evaluation of different methods of enlarging the pulp canal space, Journal of Endodontics, 2, pp. 304-311, (1976)
[18]  
Weine F.S., Kelly R.F., LIO P.J., The effect of preparation procedures on original canal shape and on apical foramen shape, Journal of Endodontics, 1, pp. 255-262, (1975)
[19]  
Weine F.S., Kelly R.F., Bray K.E., Effect of preparation with endodontic hand‐pieces on original canal shape, Journal of Endodontics, 2, pp. 298-303, (1976)
[20]  
Weine F.S., Endodontic Therapy, pp. 256-340, (1982)