Table 2. Characteristics of included patients by subtype of AI.
| Subtypes of AI | p | |||||
|---|---|---|---|---|---|---|
| Hypomature | Hypocalcified | Hypoplastic | ||||
| (n=14) | (n=14) | (n=14) | ||||
| Age (years)* | 11.0±6.0 | 10.5±4,7 | 11.1±6.8 | 0.66 | ||
| Tooth sensitivity(1) [n(% positive)] | 7 (63.6) | 12 (92.3) | 2 (22.2) | 0.30a | 0.02b | 0.59c |
| Enamel defect [n(% positive)] | 6 (42.9) | 14 (100) | 11 (78.6) | <0.01 | ||
| Examined sites (n)* | 89.8±27.0 | 82.4±23.2 | 86.9±23.8 | 0.51 | ||
| PI (%)* | 12.3±11.0 | 61.6±22.9 | 13.1±14.8 | <0.01 | ||
| Mean MGI* | 0.2±0.3 | 1.0±0.4 | 0.3±0.3 | <0.01 | ||
| Sites with MGI≥2 (%)* | 5.7±9.7 | 26.2±20.5 | 4.0±5.8 | <0.01 | ||
Friedman and Cochran’s Q tests. (1) Missing data for 3 patients with hypomature AI, for 1 patient with hypocalcified AI, and for 5 patients with hypoplastic AI. Fisher’s exact test was used for 2x2 comparisons (a) hypomature versus hypocalcified, (b) hypocalcified versus hypoplastic, (c) hypomature versus hypoplastic. *Mean±SD.