微型种植体支抗在口腔正畸治疗中的临床研究

目的:探讨微型种植体支抗在口腔正畸治疗中的效果。方法:将80例需口腔正畸治疗的患者随机分为两组,对照组给予传统正畸治疗,观察组给予微型种植体支抗治疗,观察和比较两组的手术成功率、治疗结果及随访2周期间不良反应的发生情况。结果:观察组手术成功率(92.5%)显著高于对照组(70.0%,P0.05)。治疗后,观察组上中切牙凸距差为(4.54±1.21)mm(增加80.9%)、上中切牙倾角为(27.27±4.45)mm(增加132.3%)、下齿槽座角为(1.49±0.53)mm(增加81.7%)、尖牙间宽度为(1.73±0.69)mm(增加143.7%)、磨牙移位为(3.25±0.73)mm(降低37.1%)、上齿槽座角为(-1.81±0.46)mm(降低147.9%),与对照组相比,均有显著性差异(P0.05)。随访2周内,与对照组相比,观察组口腔炎症、口腔感染、不适感降低以及软组织轻度浮肿等不良反应的发生率(10%)显著低于对照组(30%,P0.05)。结论:微型种植体支抗在口腔正畸治疗中能发挥理想的矫治效果,稳定性好,手术成功率和安全性均较高。

Clinical Investigation of Micro-implant Anchorage in the Treatment of Orthodontics

ABSTRACT Objective: To investigate the efficacy of micro-implant anchorage in the treatment of orthodontics. Methods: 80 cases of patients with orthodontics in our hospital were chosen and randomly divided into two groups, the control group was given traditional orthodontics, the observation group was given micro-implant anchorage. The operation success rate, therapeutic outcomes and incidence of adverse reactions followed up for 2 weeks were observed and compared between two groups. Results: The achievement ratio of opera- tion in observation group (92.5%) was higher than that of the control group(70.0%, P<0.05). After treatment, the upper middle incisors difference was (4.54±1.21) mm in the observation group(an increase of 80.9 percent), the inclined angle of upper middle incisors was (27.27±4.45) mm (an increase of 132.3 percent), the groove angle of lower tooth was (1.49±0.53) mm (an increase of 81.7 percent), the intercanine width was (1.73±0.69) mm (an increase of 143.7 percent), the molar shift was (3.25±0.73) mm (a reduction of 37.1 per- cent), the groove angle of upper tooth was (-1.81±0.46) mm (a reduction of 147.9 percent), which all showed significantly difference compared with the control group(P<0.05). Compared with the control group, the incidence of adverse reactions including oral inflamma- tion, oral infection, discomfort, the mildly swollen of soft tissue in observation group was dramatically lower than that of the control group (30%, P<0.05). Conclusion: Micro-implant anchorage had corrective action, good stability, high operation successful rate and safety in the treatment of orthodontics.