微种植支抗与传统片段弓矫治在牵引异位尖牙的疗效对比研究

A Comparative Study of Microimplant Anchorage and Traditional Segmental Arch in the Treatment of Traction Ectopic Canine

目的:探讨微种植支抗和传统片段弓矫治方法在牵引上颌唇侧异位尖牙的疗效差异。方法:选取2018年1月~2023年4月就诊本院口腔科的40名正畸患者,以是否选择微种植支抗分为观察组和对照组,每组20例,观察组采用微种植支抗辅助牵引尖牙,对照组采用后牙区作为支抗牵引尖牙,比较两组第一磨牙前移量、治疗时长、第一磨牙宽度变化、尖牙移动距离及时间、后牙区牙菌斑情况、黏膜情况等。结果:治疗后观察组的第一磨牙前移量、宽度变化、治疗时长、磨牙区牙菌斑情况优于对照组,差异均有统计学意义(P<0.05),尖牙移动速度、黏膜情况等比较差异均无统计学意义(P>0.05)。结论:辅助使用微种植支抗牵引异位尖牙可以有效保护后牙支抗,缩短治疗时间并且降低磨牙区菌斑附着。

Objective:Exploring the difference in therapeutic effects between micro implant anchorage and traditional segmental arch correction methods in traction of maxillary labial ectopic canines.Methods:40 orthodontic patients who visited our dental department from January 2018 to April 2023 were selected.They were divided into an observation group and a control group,with 20 cases in each group.The observation group used micro implant anchorage to assist in traction of canines,while the control group used posterior teeth as anchorage to traction canines.The amount of anterior movement of the first molar,treatment duration,width change of the first molar,distance and time of canine movement were compared between the two groups,dental plaque and mucosal conditions in the posterior area.Results:Compared with the control group,the observation group was superior to the control group in the amount and width of the first molars,duration of treatment and plaque of the first molars(P<0.05),there was no significant difference in canine movement speed and mucosal condition(P>0.05).Conclusion:The auxiliary use of micro implant anchorage for traction of ectopic canines can effectively protect posterior teeth anchorage,shorten treatment time,and reduce plaque attachment in the molar area.