未手术成人腭裂患者颅面形态的X线头影测量分析

目的:应用X线头影测量方法对未接受手术修复的成年腭裂患者(年龄为16～27岁)颅面形态进行测量分析,探讨腭裂对颌骨发肓的影响。方法:用X线头影测量机获取15例(男7例,女8例)未手术成年腭裂患者的头颅定位侧位片,联合采用Downs和Steiner分析法进行定点测量分析,测量结果均值与广西正常成年人群牙颌资料进行比较,以t检验进行统计学分析。结果:未手术修复成人单纯腭裂患者上牙槽座角SNA,上颌体长度ANS-Ptm(FH),下中切牙-下颌平面角L1-MP的均值与正常颌比较均变小,而Po-NB距与正常组比较则变大,其差异均有统计学意义(P<0.05或0.01)。结论:未手术成年腭裂患者颅面畸形主要表现为上颌骨前后向发育不足,垂直向发育未受影响;前颅底和下颌骨发育正常,而下牙槽突代偿性后缩可导致成年腭裂患者的假性颏前突。

A cephalometric study of the craniofacial morphology in adult patients with unoperated cleft palate

PURPOSE: To evaluate the effects of cleft palate on the craniofacial morphology in adult patients with unoperated cleft palate by cephalometric analysis. METHODS: X-ray cephalometry was used for the study of craniofacial morphology carried out in 7 male and 8 female patients with unoperated cleft palate. Pointing measurements were done with the methods of Downs and Steiner. The data of the cephalometric measurements were compared with that of Guangxi native normal adults by t test. RESULTS: The unopareted cleft palate patient,s SNA,ANS-Ptm(FH) and L1-MP were smaller or shorter than those of normal group while Po-NB was longer. There was significant difference between the two groups (P<0.05 or 0.01). CONCLUIONS: The deformities of adult patients with unoperated cleft palate were mainly considered to be that the anterior and posterior length of maxilla show hypoplastic while the vertical height of the maxilla the length of anterior cranial fossa and mandible was normal. But the retrusion of alveolar mandible led to chin protrusion.