Table 3.
Reasons for extraction by tooth type, n (s%)
| Tooth type | Dental caries | Periodontal problem | Impaction or supernumerary | Occlusion problem | Preprosthetic reasons | Other reasons |
|---|---|---|---|---|---|---|
| Upper jaw | ||||||
| Incisors (n = 155) | 63 (4.7) | 62 (16.4) | 0 | 2 (1.1) | 12 (11.3) | 16 (6.5) |
| Canines (n = 108) | 54 (4) | 28 (7.4) | 7 (1.9) | 3 (1.6) | 10 (9.3) | 6 (2.4) |
| Premolars (n = 387) | 211 (15.8) | 53 (14.1) | 2 (0.5) | 75 (39.7) | 11 (10.3) | 35 (14.3) |
| First and second molars (n = 324) | 239 (17.9) | 46 (12.2) | 2 (0.5) | 1 (0.5) | 11 (10.3) | 25 (10.2) |
| Third molars (n = 316) | 111 (8.3) | 8 (2.1) | 120 (32.9) | 27 (14.3) | 4 (3.7) | 46 (18.8) |
| Lower jaw | ||||||
| Incisors (n = 136) | 45 (3.4) | 63 (16.7) | 0 | 0 | 23 (21.5) | 5 (2) |
| Canines (n = 79) | 37 (2.8) | 21 (5.6) | 0 | 1 (0.5) | 15 (14) | 5 (2) |
| Premolars (n = 258) | 136 (10.2) | 37 (9.8) | 4 (1.2) | 47 (24.9) | 15 (14) | 19 (7.8) |
| First and second molars (n = 384) | 291 (21.8) | 48 (12.8) | 0 | 6 (3.2) | 2 (1.9) | 37 (15.2) |
| Third molars (n = 473) | 150 (11.1) | 11 (2.9) | 230 (63) | 27 (14.2) | 4 (3.7) | 51 (20.8) |
| Total (n = 2,620) | 1,337 (100) | 377 (100) | 365 (100) | 189 (100) | 107 (100) | 245 (100) |