骨密质松解术辅助尖牙快速移动在成人拔牙正畸矫治中的临床研究

Clinic study by rapid canine retraction technique with buccal cortical bone lysis assist custom-made rapid canine retraction device on adult extraction orthodontic patients

目的探讨唇颊侧骨密质松解术配合尖牙远移装置快速远中移动尖牙的可行性和可靠性。方法将30例成人患者纳入治疗计划,采用随机分组法将患者分为两组,每组15例患者。试验组采用骨密质松解术辅助尖牙快速远中移动对患者进行矫治,对照组采用常规拔牙方法对患者进行矫治,观察尖牙远中移动到位的时间。结果试验组患者尖牙远中移动到位平均需46 d,而对照组尖则需165 d,试验组明显缩短尖牙远中移动的时间,缩短了疗程。结论唇颊侧骨密质松解术明显缩短了远中移动尖牙的时间,为成人患者拔牙矫治提供了一种快速、可靠的治疗方法。

Objective To discuss the feasibility and reliability of a rapid canine retraction technique with buccal cortical bone lysis. Methods Thirty adult patients into the treatment plan, the randomized method divided the patients into two groups, 15 patients in each group. The experimental group, buccal cortical bone lysis were performed in meisial site, distal site and vertibular groove of upper and lower canine, then retract the canine with a custom-made rapid canine retractin device. The control group, the conventional treatments for patients with tooth extraction method. Results The mean time of canine retraction of experimental group was 46 d on average. The control group was 165 d, this technique shorten the overall orthodontic treatment time remarkablely. Conclusion Buccal cortical bone lysis can reduce the canine retraction time remarkablely, this technique provide a rapid, feaisible, reliable option for adult extraction orthodontic patients.