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目的观察92颗牙齿136个根管再治疗效果及2年后的临床疗效。方法应用超声结合法国HEROSHAPER机用镍钛根管治疗锉系列对欠通的136个根管进行预备,用超声震荡冲洗,再用侧方加压充填法做完善的根管充填,即刻拍X线片比较充填深度,2年后临床评价疗效。结果超声结合HERO机用镍钛系统136个再治疗根管扩通104个,占76.47%,借助显微镜又扩通28个,共计132个根管,扩通率占97.06%,后磨牙扩通率低于双尖牙,又低于前牙。充填效果及2年后的临床疗效比较,不同牙位没有显著差异,成功率93.48%。结论对于再治疗的患者,良好的根管治疗是促进根尖病变愈合,保存患牙的基础。
Objective To observe the re-treatment effect of 136 root canal of 92 teeth and the clinical effect after 2 years. Methods Ultrasound combined with France HEROSHAPER machine nitinol root canal treatment of the file series on the lack of access to the preparation of 136 root canal, ultrasonic shakes rinse, and then use the lateral pressure filling method to do a perfect root canal filling, immediately pat the X-ray Fill more depth, 2 years after the clinical evaluation of the curative effect. Results Ultrasound combined with HERO machine NiTi 136 system re-treatment of 104 cases of rectal canal expansion, accounting for 76.47%, through the microscope and the expansion of 28, a total of 132 root canal, the expansion rate of 97.06%, post-molar expansion rate Below the bicuspid, lower than the anterior teeth. Filling effect and clinical efficacy after 2 years, no significant difference between the different teeth, the success rate of 93.48%. Conclusion For re-treatment of patients, a good root canal therapy is to promote healing of root tip lesions, the basis for the preservation of teeth.