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Biometry of width between labial transitional line angles in anterior teeth: an observational study
Chao Wen1,2, Hongqiang Ye3, Hu Chen1
1Center of Digital Dentistry, Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, Beijing, PR China.
Esthetic width, the maximum width of anterior teeth, shows regular distribution in the Chinese population. This finding offers valuable insights for dental restorations and smile aesthetics.
Area of Science:
- Dental Aesthetics
- Biometrics
- Anthropometry
Background:
- The esthetic width of anterior teeth significantly impacts smile perception.
- Understanding tooth proportions is crucial for dental restorations.
Purpose of the Study:
- To conduct biometric research on the esthetic width of human teeth.
- To determine if esthetic width is regularly distributed.
- To explore correlations between esthetic and mesiodistal widths.
Main Methods:
- Measurement of 4,264 maxillary and mandibular anterior teeth using Geomagic studio software.
- Calculation of proportions between homonymous and adjacent teeth.
- Consideration of bilateral symmetry and esthetic-mesiodistal width correlation.
Main Results:
- Mean esthetic widths for maxillary central incisors: 6.773 mm; mandibular central incisors: 4.329 mm.
- Mean esthetic widths for maxillary lateral incisors: 5.451 mm; mandibular lateral incisors: 5.008 mm.
- Mean esthetic widths for maxillary canines: 3.340 mm; mandibular canines: 5.958 mm.
- Regular patterns observed in esthetic width proportions, similar to mesiodistal widths.
- High linear correlation between esthetic and mesiodistal widths, except for maxillary canines.
Conclusions:
- Esthetic width exhibits regular distribution in the Chinese population.
- Findings provide a reference for anterior dental restorations and esthetic reconstruction.
- Regularity aids in dimension recovery for anterior teeth.
