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

VernacularTitle:自然头位下标准正面像分析下颌不对称畸形的探讨
Author: Xiaolong ZHONG ; Li JI
Publication Type:Journal Article
Keywords: Jaw abnormalities/RA; Posture
From: Journal of Chinese Physician 2008;10(11):1463-1465
CountryChina
Language:Chinese
Abstract: 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 eases (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 cer-tain extent. The repeatability of landmarks was satisfied. Conclusion Measurements from standardized facial photographs under NHP pres-ent a clinical useful method to quantify mandibular asymmetry.