Objective To observe the application of micro-implant anchorage and multiloop edgewise arch-wire in adult patients with skeletal open bite (occlusal). Methods Sixty patients of skeletal open bite were randomly divided into two groups. Patients in the micro-implant group (n=30) were treated with micro-implant anchorage, while those in the MEAW group (n=30) were treated with multiloop edgewise archwire. Cephalometric X-ray localization films and lateral radiographs were inspected before and after treatment. The changes in the hard and soft tissue were measured and analyzed before and after correction. Results The changes showed statistically significant difference between the two groups in SNB, ANB, MP-FH (jaw change), N-Me, Me-PP, U1-PP (?, L1-PP, U1-PP (mm), U6-PP (mm) and L6-PP (mm). Conclusion Micro-planting anchorage can significantly improve the height and type of patients, with better clinical effects than multiloop edgewise archwire.%目的 观察微种植体支抗和多曲方丝弓技术在成人骨型开(牙合)矫治中的应用效果.方法 选取60例骨型牙开(牙合)患者并随机分为两组,30例患者应用微种植体支抗进行矫正作为种植支抗组,30例患者采用多曲方丝弓技术进行矫正作为MEAW组,治疗前后均对患者进行头颅X线定位片和侧位片检查,测量并分析两种方法矫正前后软硬组织的变化.结果 两组患者SNB、ANB、MP-FH变化(颌骨变化)差异有统计学意义,两组患者N-Me、Me-PP变化(面高、面型)差异有统计学意义.U1-PP(o)、L1-PP、U1-PP(mm)变化差异有统计学意义,U6-PP(mm)、L6-PP(mm)变化差异有统计学意义,其他变化差异无统计学意义.结论 微种植值支抗应用于成人骨型开(牙合)畸形的治疗,可显著改善患者面高、面型,效果优于多曲方丝弓技术.
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