Table 4.
Collected malocclusion variables and their percentage in the research group (the study and the control group), study group, the control group, and P-values
| Variable | Research g % (n) | Study g % (n) | Control g % (n) | P |
|---|---|---|---|---|
| Traumatic deep bite | 19.2 (398) | 18.9 (395) | 0.3 (3) | <0.000 |
| Severe crowding | 13.1 (270) | 13.0 (269) | 0.1 (1) | <0.000 |
| Mandible retrognatia | 12.1 (252) | 12.1 (252) | 0 (0) | <0.000 |
| Anterior crossbite | 10.4 (217) | 10.1 (209) | 0.3 (8) | <0.000 |
| Posterior crossbite | 9.3 (194) | 8.9 (185) | 0.4 (9) | <0.000 |
| Jaw asymmetry | 8.4 (175) | 8.3 (173) | 0.1 (2) | <0.000 |
| Lip incompetence | 7.7 (159) | 7.7 (158) | <0.1 (1) | <0.000 |
| Mandible prognatia | 2.3 (56) | 2.3 (56) | 0 (0) | <0.000 |
| Maxilla retrognatia | 5.2 (109) | 5.2 (108) | <0.1 (1) | <0.000 |
| Hypodontia | 5.5 (115) | 4.5 (94) | 1.0 (21) | <0.000 |
| Maxilla prognatia | 4.4 (91) | 4.3 (90) | 0.1 (1) | <0.000 |
| Scissors bite | 4.1 (84) | 3.6 (73) | 0.5 (11) | <0.000 |
| Impacted tooth* | 3.6 (75) | 3.6 (75) | 0 (0) | <0.000 |
| Anterior open bite | 1.8 (38) | 1.7 (36) | 0.1 (2) | <0.000 |
| Severe open bite | 0.3 (6) | 0.3 (6) | 0 (0) | 0.003 |
| Oligodontia | 0.1 (2) | 0.1 (2) | 0 (0) | 0.089 |
All percentages were calculated relative to the entire research group.
*Wisdom teeth were excluded.