Sharmila Rajasegaran, Jayaletchimi Selvanathan, Tew In Meei, Beh Yew Hin
Faculty of Dentistry, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia.
Department of Restorative Dentistry, Faculty of Dentistry, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia.
J Adv Prosthodont. 2025 Apr;17(2):83-91. doi: 10.4047/jap.2025.17.2.83. Epub 2025 Apr 25.
This study aimed to analyze the relationship between self-perceived dental esthetics and the selected esthetic mathematical proportions.
Descriptive cross-sectional study was conducted among 48 dental students who fit into the inclusion criteria. The subjects rated their self-perceived dental esthetics based on the given Likert scale. Standardized portrait photographs of each subject were taken and the mesiodistal measurements of the maxillary anterior teeth were measured using a graphic editing software. The golden proportion, golden percentage and RED proportion in maxillary anterior teeth were then calculated.
Most subjects were pleased with the size, form, and color of their maxillary anterior teeth. Only 2.1% of the maxillary canines and 10.4% of the left maxillary lateral incisors complied with the golden proportion. The maxillary lateral incisors demonstrated its occurrence to golden percentage. For the RED proportion, 29.2% of the left maxillary teeth and 16.7% of the contralateral teeth complied with the proportion. Self-perceived dental esthetics and the occurrence these mathematical proportions have no association.
Within the limitations of the study, it can be concluded that most subjects were satisfied with their self-perceived dental esthetics. Only a small percentage of the subjects having their natural dentition coincide with the golden proportion, golden percentage and RED proportion with a higher percentage occurring on the RED proportion. Hence, the mathematical proportions do not represent the naturally occurring dentition. These mathematical proportions can serve as a guide and the perceived teeth width can be customized accordingly.
本研究旨在分析自我感知的牙齿美学与所选美学数学比例之间的关系。
对48名符合纳入标准的牙科学生进行描述性横断面研究。受试者根据给定的李克特量表对自我感知的牙齿美学进行评分。拍摄每个受试者的标准化肖像照片，并使用图形编辑软件测量上颌前牙的近远中径。然后计算上颌前牙的黄金比例、黄金百分比和RED比例。
大多数受试者对其上颌前牙的大小、形态和颜色感到满意。只有2.1%的上颌尖牙和10.4%的左上颌侧切牙符合黄金比例。上颌侧切牙呈现出符合黄金百分比的情况。对于RED比例，29.2%的左上颌牙齿和16.7%的对侧牙齿符合该比例。自我感知的牙齿美学与这些数学比例的出现没有关联。
在本研究的局限性范围内，可以得出结论，大多数受试者对其自我感知的牙齿美学感到满意。只有一小部分拥有天然牙列的受试者符合黄金比例、黄金百分比和RED比例，其中RED比例出现的百分比更高。因此，这些数学比例并不代表自然存在的牙列。这些数学比例可以作为一个指导，并且可以据此定制感知到的牙齿宽度。
