微螺钉种植体支抗的口腔正畸效果分析

Efficacy of Microscrew Implant Anchorage in Orthodontics

目的:探讨微螺钉种植体支抗在口腔正畸中的应用效果。方法:将80例成人双颌前突患者按支抗的不同分为治疗组与对照组,每组40例。两组患者均拔除4颗第一前磨牙,采用直丝弓矫治技术,其中治疗组采用微螺钉种植体支抗,对照组采用传统强支抗方法。用X线测量分析并比较两组患者的口腔正畸效果。结果:治疗组与对照组治疗前上中切牙唇倾角(U1-SN)、下中切牙唇倾角(L1-MP)和上下中切牙长轴的交角(U1-L1)测量值差异均无统计学意义(P>0.05);治疗后,治疗组U1-SN和L1-MP测量值均小于对照组,而U1-L1测量值则大于对照组,差异均有统计学意义(P<0.05)。所有患者完成治疗,且均未出现矫治器脱落、松动及局部感染等。结论:微螺钉种植体支抗的口腔正畸效果良好。

Objective：To investigate the clinical efficacy of microscrew implant anchorage in treatment of orthodontics. Methods： Eighty adult patients with double jaw protrusion were enrolled and divided into the treatment group and the control group according to the different anchorage methods, with 40 patients in each group. The control group used the traditional straight wire appliance for correction, and the treatment group used the microscrew implants for correction. X-ray analysis was applied to observe and compare orthodontic efficacys of two methods. Results： There were no statically differences in values of upper incisor labial inclination （U1-SN）, lower incisor labial inclination（L1-MP）, upper and lower incisor axis angle （U1-L1） values before treatment between the treatment group and the control group （P〈0. 05）. However, after treatment, the values of U1-SN and L1-MP in the treatment group were lower than those in the control group, and U1-L1 value was higher than that in the control group （P〈0.05）. All patients completed treatment, and no serious complications occurred. Conclusions： The efficacy of microscrew implant anchorage for the treatment of orthodontics is good.