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Dentists' preferences of anterior tooth proportion--a web-based study
S F Rosenstiel1, D H Ward, R G Rashid
1Section of Restorative Dentistry, Prosthodontics, and Endodontics, The Ohio State University, College of Dentistry, Columbus, OH 43210, USA. rosenstiel.1@osu.edu
Summary
Dentists prefer specific tooth proportions based on height. Shorter teeth favored an 80% proportion, while very tall teeth were best with the golden proportion. Dentist demographics did not influence these esthetic preferences.
Area of Science:
- Dental Aesthetics
- Prosthodontics
- Biotechnology
Background:
- Esthetic preferences in dentistry are crucial for patient satisfaction.
- Understanding ideal tooth proportions is key in restorative and cosmetic dental procedures.
- Previous research has explored the golden proportion, but its application across various tooth heights needs further investigation.
Purpose of the Study:
- To investigate dentists' esthetic preferences for maxillary anterior teeth proportions.
- To determine how different tooth heights influence these esthetic preferences.
- To correlate esthetic choices with dentist demographics such as experience, gender, and training.
Main Methods:
- Computer-generated images of maxillary anterior teeth were manipulated for height and proportion.
- Five tooth height groups and four proportion variations (including golden proportion) were presented.
- Dentists worldwide rated the images via an online survey, with responses analyzed using logistic regression.
Main Results:
- A total of 549 valid responses from 38 countries were analyzed.
- Significant differences were found for tooth proportion, height, and their interaction.
- The 80% proportion was preferred for short/very short teeth, while the golden proportion was preferred for very tall teeth.
Conclusions:
- Dentist esthetic preferences for tooth proportion vary significantly with tooth height.
- The 80% proportion is favored for shorter teeth, and the golden proportion for very tall teeth.
- Demographic factors like gender, experience, or specialization did not correlate with these esthetic preferences.