Table 4.
Prevalence of the types of malocclusion (DHC of the IOTN) in the test and in the control groups, with the indication of significant differences.
| DHC | Test group N: 100 patients |
Control group N: 100 patients |
Odds ratio Confidence interval 95% |
P value |
|---|---|---|---|---|
| Increased overjet | 18% | 14% | 1.35 (0.63–2.89) |
0.44 N.S. |
| Anterior cross bite | 7% | 4% | 1.81 (0.51–6.38) |
0.35 N.S. |
| Upper crowding | 7% | 14% | 0.46 (0.18–1.20) |
0.11 N.S. |
| Lower crowding | 6% | 13% | 0.43 (0.16–1.17) |
0.09 N.S. |
| Increased overbite | 11% | 7% | 1.64 (0.61–4.42) |
0.32 N.S. |
| Open bite | 10% | 7% | 1.48 (0.54–4.05) |
0.45 N.S. |
| Unilateral posterior cross bite | 14% | 11% | 1.32 (0.57–3.06) |
0. 52 N.S. |
| Bilateral posterior cross bite | 8% | 5% | 1.65 (0.52–5.24) |
0.39 N.S. |
| Impeded eruption | 3% | 2% | 1.52 (0.25–9.27) |
0.65 N.S. |
N.S.: not significant.
Significant differences in Chi-square test results with 95% confidence interval; P < 0.05.