Comparative study of three types of nickel-titanium root canal preparation instruments on the clinical effect of molar root canal preparation
WANG Zhen;Department of Stomatology of Jingmeng Oral Medical Hospital;
Objective: To compare the preparation effects by using three types of instruments( Peciproc/waveone/Protaper) to prepare molar root canals. Methods: Totally 105 molars suffering pulpitis or apical periodontitis were randomly divided into 3 groups that each group had 35 molars. Nickel-titanium instruments of Reciproc were used to prepare by reciprocating and rotating motion in group R. Wave One were used to prepare by reciprocating and rotating motion in group W. ProTaper were used to prepare by rotating motion in group P. And root canal preparation time,numbers of instruments broken,postoperative pain were recorded. Root canal preparation and filling effects were evaluated. Results: During 3 groups,group W needed the minimum time,secondly was group R,both were shorter than group P,and significant differences in statistics were existed between them( P 0. 05). No instrument was broken in group R and group W,comparing with 3 instruments broken in group P,statistically significant differences were existed among them( P 0. 05). No statistically significant differences( P 0. 05) was existed among 3 groups which could maintain the original direction of root canal,good root canal taper,fluent root canals,postoperative pain and root filling effect. Conclusion: Good effects could gained with three different nickel-titanium instruments for root canal preparation,all kept the original root canal directions,as well as good root canal preparation taper and fluency,lighter postoperative complications. More time could saved by Reciproc,Wave One,which were more efficiently in preparing molar root canals.
【CateGory Index】： R781.05