Table 3.
Numbers of extractions according to tooth type in the maxilla and mandible
| Tooth | Jaw | Age group, years |
Total | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 10–20 | 21–30 | 31–40 | 41–50 | 51–60 | 61–70 | >70 | |||
| Third molar | Maxillary | 47 | 99 | 47 | 23 | 13 | 1 | 2 | 232 (14.93%) |
| Mandibular | 65 | 135 | 43 | 19 | 9 | 3 | 0 | 274 (17.63%) | |
| Second molar | Maxillary | 4 | 22 | 19 | 21 | 11 | 4 | 2 | 83 (5.34%) |
| Mandibular | 4 | 20 | 14 | 10 | 9 | 4 | 1 | 62 (3.99%) | |
| First molar | Maxillary | 27 | 29 | 32 | 21 | 10 | 3 | 4 | 126 (8.10%) |
| Mandibular | 54 | 36 | 20 | 27 | 12 | 4 | 1 | 154 (9.91%) | |
| Second premolar | Maxillary | 15 | 28 | 13 | 11 | 11 | 5 | 2 | 85 (5.47%) |
| Mandibular | 42 | 8 | 12 | 10 | 17 | 1 | 0 | 90 (5.79%) | |
| First premolar | Maxillary | 109 | 37 | 10 | 13 | 10 | 4 | 4 | 187 (12.03%) |
| Mandibular | 68 | 21 | 3 | 7 | 15 | 3 | 0 | 117 (7.52%) | |
| Canine | Maxillary | 4 | 3 | 6 | 12 | 3 | 3 | 2 | 33 (2.12%) |
| Mandibular | 1 | 2 | 3 | 3 | 11 | 2 | 3 | 25 (1.60%) | |
| Lateral incisor | Maxillary | 3 | 1 | 6 | 0 | 2 | 0 | 0 | 12 (0.77%) |
| Mandibular | 0 | 0 | 6 | 3 | 14 | 1 | 0 | 24 (1.54%) | |
| Central incisor | Maxillary | 6 | 7 | 6 | 5 | 1 | 2 | 0 | 27 (1.73%) |
| Mandibular | 0 | 2 | 5 | 7 | 8 | 1 | 0 | 23 (1.48%) | |
Notes: Maxillary, χ2 = 220.621, degrees of freedom = 42, P < 0.0001; mandibular, X2 = 348.727, degrees of freedom = 42, P < 0.001.