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双颌前突作为临床常见的错牙合畸形,严重影响患者的面部美观及生活质量,其矫治难点在于拔牙间隙要最大限度地为前牙内收利用及维持磨牙位置,防止磨牙前移导致支抗丧失,因此,支抗的选择和设计是矫治成败的关键。关闭拔牙间隙内收前牙是矫治该类患者的关键步骤,在该阶段采用何种方法关闭拔牙间隙,如何最大限度地保护后牙支抗,国内外学者做了大量研究。微种植体可提供绝对支抗,滑动法操作简单方便、快捷高效,滑动法结合微种植体关闭间隙受到愈来愈多正
Biliary maxillary protrusion as a common clinical malocclusion, seriously affecting the patient’s facial appearance and quality of life, the difficulty of its correction is to maximize the extraction of tooth space for the anterior teeth adduction and maintenance of molar position to prevent the advance of the molar lead to the branch Anti-loss, therefore, the choice and design of the support is the key to the success or failure of correction. Closing the anterior teeth extraction space is the key step in the treatment of such patients. At this stage, the method of closing the tooth extraction gap and how to protect the posterior teeth support to the maximum extent, a great deal of research has been done by domestic and foreign scholars. Micro-implant can provide absolute support, sliding method is simple and convenient, fast and efficient, sliding method combined with micro-implant closing gap is more and more positive