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Aging changes in maxillary anterior teeth in untreated individuals: an observational longitudinal study
Gabriela Natsumeda1, Felicia Miranda2, Camila Massaro3
1Department of Orthodontics, Bauru Dental School, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, SP, 17012-901, Brazil.
Progress in Orthodontics
|August 13, 2023
Summary
Aging affects smile aesthetics by altering maxillary anterior teeth dimensions and angulation in individuals with normal occlusion. These changes, observed from adolescence to adulthood, impact tooth proportions and alignment.
Area of Science:
- Dental Morphology
- Orthodontics
- Aesthetic Dentistry
Background:
- Smile design is influenced by tooth wear and aging.
- Maxillary anterior teeth undergo changes throughout life.
- Understanding these changes is crucial for aesthetic dental treatments.
Purpose of the Study:
- To evaluate the aging process of maxillary anterior teeth in untreated individuals with normal occlusion.
- To quantify changes in tooth dimensions and angulation over time.
- To assess the impact of aging on smile aesthetics.
Main Methods:
- Longitudinal study using digital dental models of 23 subjects (aged 13, 17, and 61).
- Measured crown width/height proportion, anterior view width, crown angulation, and gingival/incisal steps.
- Statistical analysis included repeated measures ANOVA and t-tests.
Main Results:
- Significant decrease in crown width/height proportion for lateral incisors and canines from adolescence to adulthood.
- Mesiodistal angulation of central incisors, lateral incisors, and canines decreased with age.
- Gingival and incisal steps also reduced over time, indicating tooth wear and positional changes.
Conclusions:
- Untreated individuals with normal occlusion experience significant changes in maxillary anterior teeth from adolescence to late adulthood.
- These age-related alterations in tooth proportion, angulation, and wear can negatively affect smile aesthetics.
- Findings provide insights into natural dental aging for smile design considerations.
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