摘要
Abstract
Objective To machine nickel titanium mechanical TF and Protaper for the clinical curative ef ects of root canal therapy. Methods The hospital in 2013 May-12 months of Oral Department of internal medicine, 120 patients as the research object, the need for root canal treatment af ected teeth was 142, were randomly divided into observation group and control group each 71, observation group with dental nickel titanium files instruments in root canal preparation using TF machine, the control group teeth with nickel titanium files instruments in root canal preparation by Protaper. Two groups of patients after root canal preparation with sodium chlorate cleaning teeth, root canal is completely dry after use Calcium Hydroxide Paste, confirm the root canal does not affect the daily life of the patients with and 7 days is up, use warm gut a percha and AHplus root canal paste on root canal fil ing with vertical hot pressing method. Results In the observation group, 5 cases of overfil ing root exists, the control group had 10 cases of root tip there is a smal amount of overfil ing, no gut a percha beyond the apical foramen teeth, no charge less teeth occurred. The X light display, control group patients after root canal preparation, the root canal fluency is good, root canal morphology did not change, root canal preparation standard. Root canal preparation time of observation group was significantly shorter compared with the control group, and the P<0.05 has statistical significance. Conclusion TF machine used nickel titanium files instruments in root canal preparation time is shorter than Protaper, nickel titanium files instruments in root canal preparation is better than the Protaper TF machine.关键词
用镍钛机械TF/机用镍钛机械Protaper/根管治疗/临床疗效Key words
Nickel titanium mechanical TF/Machine nickel titanium mechanical Protaper/Root canal therapy/Clinical effect
