Shaping ability of three profile rotary instrumentation techniques in simulated resin root canals

被引:98
作者
Kum, KY
Spängberg, L
Cha, BY
Il-Young, J
Seung-Jong, L
Chan-Young, L
机构
[1] Univ Connecticut, Ctr Hlth, Sch Dent Med, Dept Endodontol, Farmington, CT 06030 USA
[2] Yonsei Univ, Coll Dent, Dept Endodont, Seoul 120749, South Korea
关键词
D O I
10.1097/00004770-200012000-00013
中图分类号
R78 [口腔科学];
学科分类号
1003 ;
摘要
The aim of this study was to compare the shaping ability of three Profile rotary instrumentation techniques and a conventional step-back method in simulated root canals. Prevalence of canal aberrations, change in working length, and preparation time were measured. A total of 48 composite images were made from pre- and postcanal scanned images using Corel Photopaint 8.0 and then the amount of coronal substance the instruments removed was also calculated two-dimensionally on digitized images with the Brain C software to compare the enlarging efficiency. There were no significant differences between the three rotary groups in preparation time, change in working length, and the incidence of aberrations (p > 0.05). The amount of coronal substance the instruments removed in the Profile .04 taper group was significantly smaller than the other three groups (p < 0.05).
引用
收藏
页码:719 / 723
页数:5
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