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目的:观察前方牵引器联合上颌全托矫治疗替牙期反的疗效。方法:选择38例替牙期前牙反患者,用前方牵引器联合上颌全托法治疗,平均疗程5.5个月。治疗前后对所有患者均拍摄头颅侧位片并做相关测量,对测量结果做统计学比较。结果:矫治结束后,38例患者前牙反均呈不同程度解除,第一磨牙关系为中性或中性偏近中,前牙覆覆盖正常,面中凹陷的侧貌明显改善。结论:前方牵引器联合上颌全托治疗替牙期反能够促进上颌骨生长,抑制下颌骨向前生长,可使多数患儿避免成年后的正颌外科手术,满意疗效。
OBJECTIVE: To observe the curative effect of anterior traction device combined with maxillary total orthodontic appliance in treating periodontitis. Methods: Thirty-eight anterior teeth patients with antegrade teeth were selected and treated with anterior traction device combined with maxillary full-hemiplegia for an average of 5.5 months. All patients were photographed before and after treatment of cephalometric films and do related measurements, the results of the measurements to do a statistical comparison. Results: After correction, 38 cases of anterior crossbite were relieved to varying degrees, the first molar relationship between the neutral or neutral approach, covering the anterior lamina propria with normal profile of the surface depression was significantly improved. CONCLUSION: Anterior traction combined with maxillary pedicle screw can improve the growth of the maxilla and inhibit the forward growth of the mandible, which can prevent the majority of children from having satisfactory orthognathic surgery after surgery.