Sandeep Nalla, Satwalekar Parth, Srinivas Siva, Reddy Chandra Sekhar, Reddy G Ramaswamy, Reddy B Anantha
Reader, Department of Prosthodontics, SVS Institute of Dental Sciences, Mahabubnagar, Telangana, India.
Professor, Department of Prosthodontics, SVS Institute of Dental Sciences, Mahabubnagar, Telangana, India.
J Int Oral Health. 2015 Sep;7(9):18-21.
Appearance of the face is a great concern to everyone, as it is a significant part of self-image. The study analyzed the clinical crown dimensions of the maxillary anterior teeth with respect to their apparent mesiodistal widths, width-to-height ratio to determine whether golden proportion existed among the South Indian population.
A total of 240 dentulous subjects were chosen for the study (120 males and 120 females) age ranging between 18 and 28 years. Full face and anterior teeth images of the subjects were made on specially designed device resembling a face-bow, mounted onto the wall under a standard light source. The width and height of the maxillary central incisors were measured on the stone casts using a digital caliper.
The mean perceived maxillary lateral incisor to central incisor width ratio was 0.67 in males and 0.703 in females. The mean perceived maxillary canine to lateral incisor width ratio was 0.744 in males and 0.714 in females. The mean width-to-height ratio of the maxillary central incisor was 79.49% in males and 79.197% in females.
The golden proportion was not found between perceived mesiodistal widths of maxillary central and lateral incisors and nor between perceived mesiodistal widths of maxillary lateral incisors and canines. In the majority of subjects, the width-to-height ratio of maxillary central incisor was within 75-80%. There are no statistically significant differences in maxillary anterior teeth proportions between males and females. The results may serve as guidelines for treatment planning in restorative dentistry and periodontal surgery.
面部外观是每个人都非常关心的问题,因为它是自我形象的重要组成部分。本研究分析了上颌前牙的临床冠尺寸,包括其近远中宽度以及宽高比,以确定南印度人群中是否存在黄金比例。
共选取240名有牙颌受试者(120名男性和120名女性),年龄在18至28岁之间。在类似面弓的特殊设计装置上拍摄受试者的全脸和前牙图像,该装置安装在标准光源下的墙上。使用数字卡尺在石膏模型上测量上颌中切牙的宽度和高度。
男性上颌侧切牙与中切牙宽度的平均感知比值为0.67,女性为0.703。男性上颌尖牙与侧切牙宽度的平均感知比值为0.744,女性为0.714。男性上颌中切牙的平均宽高比为79.49%,女性为79.197%。
在上颌中切牙和侧切牙的近远中宽度之间以及上颌侧切牙和尖牙的近远中宽度之间均未发现黄金比例。在大多数受试者中,上颌中切牙的宽高比在75%-80%之间。男性和女性在上颌前牙比例上没有统计学上的显著差异。这些结果可为修复牙科和牙周手术的治疗计划提供指导。