Table 2.
Frequency of permanent teeth affected by MIH, according to affected arch and hemiarch.
| Affected tooth | Maxillary arch, n (%) | Total | Mandibular arch, n (%) | Total | ||
|---|---|---|---|---|---|---|
| Right hemiarch | Left hemiarch | Right hemiarch | Left hemiarch | |||
| Central incisor | 13 (6.0) | 5 (2.3) | 18 (8.3) | 4 (1.8) | 10 (4.6) | 14 (6.4) |
| Lateral incisor | 2 (0.9) | 1 (0.5) | 3 (1.4) | 4 (1.8) | 9 (4.2) | 13 (6.0) |
| First molar | 38 (17.5) | 32 (14.8) | 70 (32.3) | 40 (18.4) | 54 (24.9) | 94 (43.3) |
| Second molar | 1 (0.5) | 1 (0.5) | 2 (0.9) | 1 (0.5) | 1 (0.5) | 2 (0.9) |
| Canine | 0 (0.0) | 0 (0.0) | 0 (0.0) | 1 (0.5) | 0 (0.0) | 1 (0.5) |
|
| ||||||
| Total | 54 (24.9) | 39 (18.1) | 93 (42.9) | 50 (23.0) | 74 (34.2) | 124 (57.1) |