| Age periods (years) |
Dental caries | Wisdom teeth related extraction | Periodontal disease | Failed root canal treatment | Prosthetic reasons | Orthodontic reasons | Trauma |
|---|---|---|---|---|---|---|---|
| <20 | 57.1% | 0% | 2.9% | 5.7% | 0% | 28.6% | 5.7% |
| 20-29 | 55.1% | 26.3% | 3% | 9.6% | 0.6% | 4.2% | 1.2% |
| 30-39 | 49.3% | 33.9% | 9.2% | 6.8% | 0% | 0% | 0.7% |
| 40-49 | 33.7% | 17.2% | 31.1% | 12.5% | 4.4% | 0% | 1% |
| 50-59 | 43.7% | 22.8% | 25.7% | 4.2% | 3.6% | 0% | 0% |
| ≥60 | 40.5% | 4.8% | 28.6% | 11.9% | 14.3% | 0% | 0% |
| Total | 44.6% | 23.4% | 18.1% | 8.7% | 2.6% | 1.7% | 0.9% |