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Tooth shade variation in Indian population: An objective guide to age estimation
N Srikant1, Annapurna S Intern2, G Vaishnavi2
1Center for Forensic Odontology, Manipal College of Dental Sciences, Mangalore, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India.
Heliyon
|February 18, 2021
Summary
Tooth color changes with age, becoming redder and darker. This study found a significant correlation between age and tooth shade parameters, suggesting tooth color can aid in age estimation.
Area of Science:
- Forensic Anthropology
- Dental Age Estimation
Background:
- Tooth color is influenced by chronological age due to changes in hard and soft tissue structure.
- Limited research exists on enamel shade changes with age.
- This study investigates enamel shade variations across different age groups.
Purpose of the Study:
- To assess enamel shade changes in relation to aging.
- To determine if tooth color can be a reliable indicator for age estimation.
Main Methods:
- Assessed tooth color (Hue, Value, Chroma) of 388 individuals (ages 5-78) using a VITA 3D master shade guide.
- Calculated mean grey values using Image J software, normalized with a grey card.
- Employed Chi-square tests and linear regression for statistical analysis.
Main Results:
- Older individuals exhibited higher Hue, Value, and Chroma scores.
- Tooth shade showed a tendency to shift towards a redder hue with increasing age.
- Linear regression revealed a significant correlation (r = 0.717) between age and normalized grey values.
Conclusions:
- Tooth color demonstrably changes with age.
- Mean grey values and shade guides show potential as tools for forensic age estimation.
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