Anthropometry of the Upper Central Incisor: A Review of the Literature

The esthetic dimensions and proportions of the upper central incisors (UCI) are fundamental in dental and facial esthetics due to their prominence in the smile. This literature review aimed to establish the ideal width/length ratios of the UCIs. Nineteen relevant studies were identified after a search of 3 databases: PubMed, Scopus, and Springer. Results: Mean width/length ratios ranged from 80-85% in various populations. It has been corroborated that UCI dimensions present a significant difference between genders, with men showing larger dimensions in both width and height than women. The overall mean for males was 8.63 mm in width and 10.17 mm in length, while for females it was 8.32 mm and 9.36 mm, respectively. Conclusions: It is crucial to adapt dental treatments to
individual patient characteristics to achieve functional and esthetic results. Factors such as gender, ethnicity and dental wear influence the dimensions and proportions, underlining the importance of individualizing dental treatments to optimize esthetic and functional results.