目的:探讨微螺钉种植体支抗在口腔正畸中的临床应用。方法:2009年1月～2012年1月将本院收治的120例错颌畸形患者随机分为观察组(使用微螺钉种植体支抗技术)和对照组(一般正畸支抗技术)各60例,观察两组疗效。结果:观察组中显效37例,有效22例,总有效率为98.3%;对照组中显效28例,有效15例,总有效率为86.7%;两组比较差异有统计学意义(P<0.01)。结论:微螺钉种植体支抗在口腔正畸中效果明显,值得临床推广使用。 Objective: To investigate the clinical application of micro-screw implants in orthodontics. Methods: From January 2009 to January 2012, 120 patients with malunion patients admitted to our hospital were randomly divided into observation group (with micro-screw implant support technique) and control group (general orthodontic support technique) with 60 Cases, observed two groups of curative effect. Results: In the observation group, 37 cases were markedly effective and 22 cases were effective. The total effective rate was 98.3%. In the control group, 28 cases were markedly effective and 15 cases were effective. The total effective rate was 86.7%. There was significant difference between the two groups (P <0.01) ). Conclusion: The effect of micro-screw implant anchorage in orthodontics is obvious and worthy of clinical promotion.