摘要
目的比较替牙期骨性Ⅲ类不同垂直骨面型患者的髁突形态特点及差异,为替牙期颅面部生长发育的研究和临床诊疗提供一定的参考依据。方法选择替牙期骨性Ⅲ类错患者共60例为研究对象,按照不同的垂直骨面型分为高角组、均角组和低角组,每组20例。采用计算机辅助X线头影测量技术,对3组患者的全颌曲面断层片进行测量,比较各组间髁突形态特点。结果替牙期3组患者的髁突上部高度h值有统计学差异(P<0.01),高角组最小,低角组最大(P<0.05);升支高度RH值组间无统计学差异(P>0.05);h/RH值组间有统计学差异(P<0.01),高角组低于均角组和低角组(P<0.05);髁突高度与髁突颈部宽度的比值在组间亦无统计学差异(P>0.05)。结论替牙期骨性Ⅲ类不同垂直骨面型患者的髁突形态存在差异,这可能与不同垂直骨面型的生长趋势有关。
Objective To study the difference of condylar morphology with different vertical facial types of skeletal Ⅲ maloeelusions in mixed dentition. Methods Orthopantomograms of 60 children with different vertical facial types were retrospectively investigated by computerized cephalometric analysis. Condylar morphology was compared among different vertical facial type groups. Results There was statistical difference in upper condylar height among groups, the height increased from high angle group, average angle group to low angle group. There was no significant difference in ramus height in the groups. There was statistical difference in the upper condylar height to the ramus height radio in different vertical facial type groups（P〈0.01）. The ratio increased from high angle group, average angle group to low angle group. There was no significant difference in the condylar height to the condylar neck width ratio in the groups. Conclusion In children of skeletal Ⅲ malocclusions in mixed dentition with different vertical facial types, there are statistical differences in condylar morphology, which might be due to different growth of mandibular.
出处
《华西口腔医学杂志》
CAS
CSCD
北大核心
2006年第6期520-522,共3页
West China Journal of Stomatology
关键词
替牙期
骨性Ⅲ类
垂直骨面型
髁突形态
mixed dentition
skeletal Ⅲ malocclusion
vertical facial type
condylar morphology
作者简介
王欢（1980-），女，湖北人，硕士研究生
【通讯作者】丁寅．Tel：029-84776131
