Tehranchi A, Behnia H
Orthodontic Department, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Angle Orthod. 2000 Apr;70(2):165-74. doi: 10.1043/0003-3219(2000)070<0165:TOMABD>2.0.CO;2.
Distraction osteogenesis devices followed by hybrid functional appliance therapy and fixed orthodontic appliance therapy were used to correct a variety of maxillofacial skeletal and dental deformities in 4 patients. The patients underwent procedures to lengthen the mandibular ramus and body. Transcutaneous pins were used to activate the distraction devices. After achieving the desired skeletal position, the distraction devices were maintained for 2 to 3 months to allow ossification. Following distraction, functional orthodontic appliance therapy was initiated during growth to correct the cant of the occlusal plane by extrusion of teeth on the affected side for improved facial symmetry. Fixed orthodontic therapy was used for final occlusal adjustments. All patients achieved lengthening of their jaws and substantial improvement in facial symmetry and occlusion. The follow-up period for this group of 4 patients ranged from 18 to 36 months.
采用牵引成骨装置，随后进行混合功能矫治器治疗和固定正畸矫治器治疗，对4例患者的各种颌面骨骼和牙齿畸形进行矫治。患者接受了下颌升支和下颌体延长手术。通过经皮穿针来启动牵引装置。在达到理想的骨骼位置后，保持牵引装置2至3个月以促进骨化。牵引完成后，在生长期间开始功能性正畸矫治器治疗，通过患侧牙齿的伸长来纠正咬合平面的倾斜，以改善面部对称性。使用固定正畸治疗进行最终的咬合调整。所有患者均实现了颌骨延长，面部对称性和咬合情况有了显著改善。这4例患者的随访期为18至36个月。
