Table 4. Distribution of the general and specific clinical characteristics of the enamel observed in the individuals affected with Amelogenesis Imperfecta (AI) according to clinical subtype.
| CLINICAL CHARACTERISTICS OF ENAMEL | HPAI | HMAI | HCAI | HM/HPAI | HC/HPAI | TOTAL |
|---|---|---|---|---|---|---|
| n=18 | n=31 | n=5 | n=15 | n=3 | n=72 | |
| No. (%) | No. (%) | No. (%) | No. (%) | No. (%) | No. (%) | |
| GLOSSINESS& | ||||||
| Normal | 10 (59) | 20 (69) | 0 (0) | 11 (73) | 0 (0) | 41 (59) |
| Opaque | 7 (41) | 9 (31) | 5 (100) | 4 (27) | 3 (100) | 28 (41) |
| TEXTURE& | ||||||
| Normal | 9 (53) | 19 (66) | 0 (0) | 9 (60) | 0 (0) | 37 (54) |
| Rough | 8 (47) | 10 (34) | 5 (100) | 6 (40) | 3 (100) | 32 (46) |
| COLOR& | ||||||
| White/opaque | 12 (71) | 22 (76) | 0 (0) | 11 (73) | 0 (0) | 45 (65)a |
| Yellow | 5 (29) | 5 (17) | 2 (40) | 4 (27) | 1 (33) | 17 (25) |
| Brown | 0 (0) | 0 (0) | 3 (60) | 0 (0) | 1 (33) | 4 (6) |
| White-yellow | 0 (0) | 1 (3.5) | 0 (0) | 0 (0) | 1 (33) | 2 (3) |
| Yellow-brown | 0 (0) | 1 (3.5) | 0 (0) | 0 (0) | 0 (0) | 1 (1) |
| THICKNESS& | ||||||
| Normal | 3 (18) | 26 (90)b | 0 (0) | 9 (60) | 0 (0) | 38 (55) |
| Decreased | 14 (82) | 3 (10) | 5 (100) | 6 (40) | 3 (100) | 31 (45) |
| LINE BANDING | ||||||
| Horizontal | 5 (29) | 3 (10) | 0 (0) | 0 (0) | 0 (0) | 8 (12) |
| Vertical | 2 (12) | 3 (10) | 0 (0) | 3 (20) | 0 (0) | 8 (12) |
| SPOTTING | ||||||
| White/opaque spots | 9 (53) | 29 (100) | 1 (20) | 14 (93) | 0 (0) | 53 (77) |
| Yellow-brown spots | 4 (24) | 8 (28) | 1 (20) | 5 (33) | 1 (33) | 19 (28) |
| SURFACE DEFECTS | ||||||
| Pits or cavitation | 7 (41) | 6 (21) | 2 (40) | 4 (27) | 1 (33) | 20 (29) |
| Wear | 16 (94) | 13 (45) | 4 (80) | 10 (67) | 2 (67) | 45 (65) |
| WITHOUT DATA& | ||||||
| No. Patients | 1 (6)* | 2 (7) | 0 (0) | 0 (0) | 0 (0) | 3 (4) |
&
Patients without data in these characteristics,
*
all teeth restored at the time of the examination.
a, b
Fisher's exact test P<0.0001