Dimaggio Francesca Romana, Ciusa Veronica, Sforza Chiarella, Ferrario Virgilio F
Functional Anatomy Research Center, Laboratorio di Anatomia Funzionale dell'Apparato Stomatognatico, Dipartimento di Morfologia Umana, Facoltà di Medicina e Chirurgia, Università degli Studi, Milano, Italy.
Am J Orthod Dentofacial Orthop. 2007 Oct;132(4):475-80. doi: 10.1016/j.ajodo.2005.10.029.
Profile photographs can be a valuable, noninvasive tool for early orthodontic diagnosis and treatment planning.
Left-side profile photographs were obtained of 181 normal, healthy children at age 6 years. Standardized landmarks were digitized on the photographs, and several linear and angular measurements were computed. The children were divided according to dental class and sex. Comparisons were made by 2-way analyses of variance.
Facial convexity (larger in boys than in girls), Sn-N-Sl, and nasolabial and interlabial angles differed significantly (P <.01) between the sexes. Girls had significantly less labial protrusion than boys. Facial height was significantly greater in children with dental Class II, without sex differences. All analyzed angles were significantly influenced by dental class. Facial convexity was smaller in children with dental Class II. Cutaneous class was larger, and lips were more prominent in children with dental Class II than in those with dental Class III.
The significant relationship between dental and cutaneous classes has important implications for orthodontic diagnosis and treatment. Dental class can usefully represent facial esthetics, and orthodontic procedures that modify dental occlusion might cause important repercussions to facial soft tissues.
侧面照片对于早期正畸诊断和治疗计划而言，可能是一种有价值的非侵入性工具。
获取了181名6岁正常健康儿童的左侧侧面照片。在照片上对标准化标志点进行数字化处理，并计算了几个线性和角度测量值。根据牙列分类和性别对儿童进行分组。通过双向方差分析进行比较。
面部凸度（男孩大于女孩）、Sn-N-Sl以及鼻唇角和唇间角在性别之间存在显著差异（P <.01）。女孩的唇突度明显小于男孩。II类牙列儿童的面部高度明显更高，且无性别差异。所有分析的角度均受牙列分类的显著影响。II类牙列儿童的面部凸度较小。II类牙列儿童的皮肤型比III类牙列儿童更大，嘴唇更突出。
牙列分类与皮肤型之间的显著关系对正畸诊断和治疗具有重要意义。牙列分类可以有效地代表面部美学，而改变牙合的正畸程序可能会对面部软组织产生重要影响。
Zotero 插件