自然头位下标准正面像分析下颌不对称畸形的探讨  

Evaluate the reliability of standardized facial photographs in assessment of mandibular asymmetry case

作　　者：钟小龙[1] 吉利[1] 

机构地区：[1]中山大学附属第一医院口腔科,广东广州510080

出　　处：《中国医师杂志》2008年第11期1463-1465,共3页Journal of Chinese Physician

基　　金：广东省科技计划资助项目（2005B31201016）

摘　　要：目的探讨自然头位下标准正面像在分析下颌不对称畸形中的作用。方法拍摄25例下颌不对称畸形患者的自然头位下的标准正面像（SFP）和X线头颅后前位定位片（PAC），分别测量SFP的耳下点OtI、软组织下颌角点Go′、口角点CH′、软组织颏下点Me′和PAC的乳突点Mas、下颌角点Go、下尖牙点LC、颏下点Me到正中矢状面参考线的垂直距离。分析左右两侧测量值的差异、不对称率以及两种方法的相关性。结果两种方法的测量值除耳下点和乳突点外，两侧差异皆存在统计学意义（P〈0．05），两种方法相对应的测量值皆存在不同程度的相关。结论自然头位下标准正位像可作为分析下颌不对称畸形的一种方法。Objective To assess the reliability and validity of standardized facial photographs under natural head position （NHP） in assessment of mandibular asymmetry cases. Methods Standardized facial photographs （SFP） and posteroanterior cephalometry （PAC） were taken under natural head position from 25 mandibular asymmetry cases （ 14 boys and 11 girls）, aged 14 to 29 years old. Distances from 8 landmarks to the vertical reference line were measured. The difference and the asymmetry ratio of two sides were calculated respectively. The relationship between the measurements of SFP and PAC were compared, and the repeatability of landmarks was assessed. Results Six measurements were significant different between two sides, 3 from SFP and 3 from PAC. Measurements from two ways were correlated a certain extent. The repeatability of landmarks was satisfied. Conclusion Measurements from standardized facial photographs under NHP present a clinical useful method to quantify mandibular asymmetry.

关 键 词：颌畸形 放射摄影术 体位 临床治疗 

分 类 号：R816.98[医药卫生—放射医学] R782[医药卫生—临床医学]