Willmot D R, Moss J P
J Maxillofac Surg. 1984 Aug;12(4):163-6. doi: 10.1016/s0301-0503(84)80238-6.
Cephalometric radiographs of the position of upper and lower incisors following mandibular surgery only were undertaken in 31 cases. All cases were seen before and after treatment, and after all retention had ceased. Pre-treatment records revealed some compensation of the incisor angulation for the skeletal discrepancy, and post-operatively the upper incisors proclined further and the lower incisors remained unchanged.
仅对31例患者进行了下颌手术后上下切牙位置的头影测量X线片检查。所有病例均在治疗前后以及所有保持期结束后进行了检查。治疗前记录显示，切牙角度对骨骼差异有一定代偿，术后上切牙进一步前倾，下切牙保持不变。
