临床口腔医学杂志Issue(6)：345-346,2.DOI:10.3969/j.issn.1003-1634.2014.06.010
冠部预处理对磨牙重度弯曲根管工作长度影响的研究
Study the effect of coronal preflaring on the working length measurement of molar's heavy curved root canals
阳冬青 1陈曼玲 1张泳 1王冬梅 1吴洁1
作者信息
- 1. 韶关市口腔医院 广东 韶关 512026
- 折叠
摘要
Abstract
Objective:To observe the effect of coronal preflaring on the working length measurement of molar's heavy curved root canals. Method:588 root canals from 460 molar of curvature of 25~45 degrees were choosed to divide into the A、B、C group randomly. The A group 192 root canals from 153 molar were not prepare crown and prepared with K file ,mea-sure the working length before and after the preparation. The B、C group coronal preflaring by Gates-Glidden and Protaper Rotary Instruments,and then B group 196 root canals from 151 molars were prepared with K file,measure the working length before preparation and after the preparation.The C group 200 root canals from 156 molars were prepared with Protaper Rotary Instruments,measure the working length before preparation and after preparing by complete file. Result:there is significant change in group A (P <0.01),and there is no significant differences between B and C group after coronal preflaring (P >0.05). Conclusion:Preflaring the coronal portion of the curved molar's root canals could significantlv increase the accurate measurements of the working length.关键词
工作长度/磨牙/根管弯曲度/ProTaper/冠部预处理Key words
working length/molar/degree of curved root canal/ProTaper/root canals preparation分类
医药卫生引用本文复制引用
阳冬青,陈曼玲,张泳,王冬梅,吴洁..冠部预处理对磨牙重度弯曲根管工作长度影响的研究[J].临床口腔医学杂志,2014,(6):345-346,2.
