A 35-year-old female skeleton is recovered from an archaeological excavation in rural Maharashtra. The forensic anthropologist notes that the third molars are present but shows significant attrition with exposed dentine on the occlusal surfaces. The roots of the third molars are completely formed and show mild apical resorption. The alveolar bone shows generalized resorption with some tooth loss. Multiple ribs show calcification of costal cartilages. The pubic symphysis shows moderate lipping and irregular margins. Based on these dental and skeletal features, what is the estimated age of this individual?

Explanation

## Age Determination Using Dental and Skeletal Markers ### Multifactorial Age Assessment **Key Point:** Age estimation in adults relies on a combination of dental attrition, root resorption, skeletal degenerative changes, and bone density markers. No single feature is diagnostic; all must be integrated. ### Dental Features and Age Correlation | Dental Feature | Age Range | Significance | |---|---|---| | Third molar eruption | 17–21 years | Indicates skeletal maturity | | Third molar root completion | 21–25 years | Full dental maturity | | Mild attrition with exposed dentine | 30–50 years | Progressive wear from mastication | | Moderate–severe attrition | 40–60 years | Advanced wear in older adults | | Apical root resorption | 35+ years | Physiological resorption with age | | Alveolar bone resorption + tooth loss | 40+ years | Periodontal disease and age-related changes | **High-Yield:** **Dental attrition** (wear of occlusal surfaces) is one of the most reliable age markers in adults. Exposed dentine indicates significant wear, typically seen after age 30–35. ### Skeletal Degenerative Markers **Pubic Symphysis Changes (Suchey–Brooks Method):** - Moderate lipping and irregular margins = Stage 4–5 - Age range: **35–50 years** **Costal Cartilage Calcification:** - Calcification of costal cartilages increases with age - Becomes prominent after age 40 - Indicates advancing age in the 40–60 range **Rib Changes:** - Costal cartilage ossification is a late-stage marker - Presence suggests age >40 ### Integrated Interpretation In this case: 1. **Dental attrition with exposed dentine** → age 35+ 2. **Apical root resorption** → age 35+ 3. **Alveolar bone resorption and tooth loss** → age 40+ 4. **Pubic symphysis: moderate lipping, irregular margins** → age 35–50 5. **Costal cartilage calcification** → age 40+ **Clinical Pearl:** When multiple markers converge (dental wear, root resorption, pubic symphysis changes, and costal cartilage calcification), the age estimate is more reliable. The presence of all four features points to the **40–50 year range**. ### Why Not Other Ranges? - **25–30 years:** Too young; alveolar resorption with tooth loss and costal cartilage calcification would not be present. - **30–40 years:** Possible but underestimates; the degree of dental attrition (exposed dentine), root resorption, and pubic symphysis changes suggest age >40. - **50–60 years:** Possible but less likely; moderate (not severe) lipping on pubic symphysis and moderate (not advanced) attrition suggest age <50. [cite:Vij 5e Ch 8; Reddy 3e Ch 6]