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| Tooth groups | All teeth (n) | Teeth with apical periodontitis (n) | Apical periodontitis prevalence (%) |
| Maxillary incisors + canines | 1246 | 58 | 4.6 |
| Mandibular incisors + canines | 1251 | 8 | 0.6 |
| Maxillary premolars | 754 | 42 | 5.6 |
| Mandibular premolars | 716 | 20 | 2.8 |
| Maxillary molars | 908 | 22 | 2.4 |
| Mandibular molars | 710 | 42 | 5.9 |
| Total | 5585 | 192 | 3.4 |
