Aoshima O, Satoh Y, Imamura R, Yamashita T
Department of Orthodontics, Nihon University School of Dentistry at Matsudo, Japan.
J Nihon Univ Sch Dent. 1996 Jul;38(2):67-77. doi: 10.2334/josnusd1959.38.67.
In our previous study carried out in 1994, we found 49 patients with unilateral cleft lip and palate (UCLP) among 51 patients with cleft lip and palate who visited the Department of Orthodontics, Nihon University Dental Hospital at Matsudo. In particular, patients with cross-bite (anterior cross-bite) UCLP were predominant, accounting for 21 individuals (41%). In the present study, we reviewed 79 patients with malocclusion including 21 with anterior cross-bite UCLP, who represent the largest subpopulation among patients with cleft lip and palate. These 21 patients were compared with other UCLP patients showing normal bite with regard to morphological differences evident in lateral roentgenographic cephalograms, to establish a proper policy of orthodontic diagnosis and treatment of their condition. The anterior cross-bite UCLP group showed differences in the skeletal pattern and the denture to skeletal pattern from the other patient groups except for the mesio-distal relationship. The anterior cross-bite UCLP group had cross-bite of the concave type, while the normal bite UCLP group had malocclusion of the convex type accompanied by maxillary overdevelopment. Thus, it is suggested that normalization of reversed occlusion leads to favorable growth of the upper jaw in UCLP patients with anterior cross-bite.
在我们1994年进行的一项前期研究中，我们在访问日本大学松户齿科医院正畸科的51例唇腭裂患者中发现了49例单侧唇腭裂（UCLP）患者。特别是，伴有反合（前牙反合）的UCLP患者占主导，有21例（41%）。在本研究中，我们回顾了79例错合畸形患者，其中包括21例前牙反合的UCLP患者，他们是唇腭裂患者中最大的亚组。将这21例患者与其他咬合正常的UCLP患者在头颅侧位X线片上明显的形态差异方面进行比较，以制定针对其病情的正畸诊断和治疗的适当策略。前牙反合的UCLP组在骨骼模式以及牙列与骨骼模式方面，除近远中关系外，与其他患者组存在差异。前牙反合的UCLP组为凹面型反合，而咬合正常的UCLP组为凸面型错合并伴有上颌过度发育。因此，提示对于前牙反合的UCLP患者，纠正反合可导致上颌的良好生长。
