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目的:观察微型种植体支抗在口腔正畸中的临床应用效果。方法:对2011年9月~2013年3月采用微型种植体支抗矫治安氏Ⅱ类1分类上颌前突患者26例的临床资料进行回顾性分析。结果:26例安氏Ⅱ类1分类上颌前突患者,共植入52个微型种植体支抗钛钉,矫治结束后种植体支抗保持稳定46个,23例患者矫治成功,其中3例患者3个单侧种植体支抗钛钉在内收前牙过程中松动脱落,脱落率为5.77%;拔牙间隙关闭时间平均11.60±3.05个月,矫治疗程17.35±1.56个月。23例上颌前突患者通过微型种植体支抗矫治后X线头影及模型测量指标较矫治前均有显著改善,差异有统计学意义(P<0.05),建立了正常的前牙覆牙合覆盖关系,临床成功率为88.46%。结论:微型种植体支抗具有植入部位广泛、创伤小、操作简便、对患者依赖性小等优点,与传统的强支抗方式相比支抗控制能力更强,有效矫治错颌畸形的临床效果更好。
Objective: To observe the clinical effect of micro-implant anchorage in orthodontics. Methods: The clinical data of 26 patients with Class Ⅱ division 1 maxillary protrusion treated with micro-implant anchorage from September 2011 to March 2013 were analyzed retrospectively. RESULTS: Twenty-six patients with Class Ⅱ division 1 maxillary protrusion underwent a total of 52 micro-implantations with titanium screws. After the treatment, implant anchorage remained stable at 46 and 23 patients were successfully treated. Three of the patients Three unilateral titanium implant implants broke off during the process of adduction, the rate of exfoliation was 5.77%. The average closing time of extraction gap was 11.60 ± 3.05 months, and the duration of orthodontic treatment was 17.35 ± 1.56 months. In 23 cases of maxillary protrusion patients, the X-ray cephalometry and model measurement indexes after micro-implant support were significantly improved compared with that before correction, the difference was statistically significant (P <0.05), and the normal anterior occlusal coverage was established Relationship, the clinical success rate was 88.46%. CONCLUSION: Micro implant anchors have the advantages of extensive implantation site, less trauma, simple operation and less dependence on patients. Compared with the traditional methods of strong anchorage, the micro-implant anchors are more effective in controlling the malocclusion Better results.