目的通过对40例牙龈型微笑的深覆牙合患者的治疗，探讨J形钩高位牵引的临床应用。
Objective To investigated the clinical value of J hook in higher traction by treatment of 40 gummy smile deep overbite patients.
方法：通过对12例患者在扩弓及内收切牙时应用牙弓夹板式扩弓矫治器及高位牵引的头帽颏兜加强支抗。
Methods: 12 patients were treated with bonded RME appliance to expanse the maxillary arches and with vertical pull chincap to augment anchorage.
治疗时先以开窗手术露出此高位的犬齿牙冠后，黏上钮扣然后施予轻微的矫正力量牵引阻生犬齿至正常的位置。
Treatment procedures included surgical exposure of the high positioned canine, followed by bonding with a lingual button, and orthodontic traction the impacted canine to the proper position.
移动或牵引液压平台时应将支撑腿收起且平台降至最低位置，严禁作业人员在高位时移动平台。
Mobile or traction hydraulic platform should be put away and the platform to the lowest level of support, no operating personnel at high level when the mobile platform.
摘要目的：总结颌间牵引钉治疗髁突高位骨折的护理方法。
Abstract: Objective: To summarize the nursing care points of intermaxillary traction in the reduction of high position condylar fractures of the mandible.
摘要目的：总结颌间牵引钉治疗髁突高位骨折的护理方法。
Abstract: Objective: To summarize the nursing care points of intermaxillary traction in the reduction of high position condylar fractures of the mandible.
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