Kerr W J, TenHave T R
Glasgow Dental Hospital and School.
Br J Orthod. 1988 Nov;15(4):241-5. doi: 10.1179/bjo.15.4.241.
Lateral skull radiographs of 66 subjects with Class III malocclusion, characterized by lingual occlusion of the upper incisors and a degree of overbite, taken before and after treatment were compared with a Control Group of similar mean age and interval between films. Vertical, Horizontal and Oblique measurements were made to establish the part played by overclosure and anterior displacement of the mandible in the aetiology of Class III malocclusion. The results suggest that both may play a part but that the former is of more general significance than the latter.
选取66名患有III类错牙合畸形的受试者，其特征为上门牙舌侧咬合及一定程度的覆牙合，在治疗前后拍摄头颅侧位X线片，并与年龄均值及两次拍片间隔时间相似的对照组进行比较。进行垂直、水平和斜向测量，以确定下颌过度闭合和前移在III类错牙合畸形病因学中所起的作用。结果表明两者可能都起作用，但前者比后者具有更普遍的意义。
