Table 5.
Unaffected Parents of Probands: Permanent Dentition with at Least 1 Anomaly.
| Anomaly | Unaffected Parents (n = 1,186), n (%) | Control Parents (n = 347), n (%) | P Value |
|---|---|---|---|
| Right maxilla | |||
| Hypoplasia | 52 (4) | 9 (3) | 0.16 |
| Microdontia | 19 (2) | 1 (<1) | 0.06 |
| Impacted | 6 (<1) | 1 (<1) | 1.00 |
| Rotated | 535 (45) | 142 (41) | 0.18 |
| Displaced | 160 (13) | 49 (14) | 0.79 |
| Agenesis | 28 (2) | 4 (1) | 0.20 |
| Supernumerary | 5 (<1) | 0 | 0.59 |
| Any anomaly | 616 (52) | 165 (48) | 0.16 |
| Any anomalya | 106 (9) | 15 (4) | 0.004 |
| Left maxilla | |||
| Hypoplasia | 46 (4) | 6 (2) | 0.06 |
| Microdontia | 18 (2) | 1 (<1) | 0.09 |
| Impacted | 7 (<1) | 1 (<1) | 0.69 |
| Rotated | 539 (45) | 149 (43) | 0.43 |
| Displaced | 156 (13) | 54 (16) | 0.25 |
| Agenesis | 37 (3) | 6 (2) | 0.20 |
| Supernumerary | 3 (<1) | 1 (<1) | 1.00 |
| Any anomaly | 637 (54) | 167 (48) | 0.08 |
| Any anomalya | 107 (9) | 15 (4) | 0.003 |
| Maxilla | |||
| Hypoplasia | 70 (6) | 12 (3) | 0.08 |
| Microdontia | 26 (2) | 2 (<1) | 0.06 |
| Impacted | 10 (<1) | 1 (<1) | 0.47 |
| Rotated | 661 (56) | 180 (52) | 0.22 |
| Displaced | 243 (20) | 79 (23) | 0.37 |
| Agenesis | 51 (4) | 8 (2) | 0.11 |
| Supernumerary | 8 (<1) | 1 (<1) | 0.69 |
| Any anomaly | 749 (63) | 198 (57) | 0.04 |
| Any anomalya | 157 (13) | 24 (7) | 0.001 |
| Mandible | |||
| Hypoplasia | 35 (3) | 6 (2) | 0.26 |
| Microdontia | 2 (<1) | 0 | 1.00 |
| Impacted | 3 (<1) | 0 | 1.00 |
| Rotated | 801 (68) | 218 (63) | 0.11 |
| Displaced | 342 (29) | 92 (27) | 0.42 |
| Agenesis | 18 (2) | 0 | 0.02 |
| Supernumerary | 1 (<1) | 0 | 1.00 |
| Any anomaly | 841 (71) | 229 (66) | 0.08 |
| Any anomalya | 59 (5) | 6 (2) | 0.006 |
a
Any anomaly without malposition (displacement and rotation).