3 years old | 4 years old | 5 years old | 6 years old | Total | |
---|---|---|---|---|---|
(n = 119) | (n = 171) | (n = 146) | (n = 67) | (n = 503) | |
Mandibular midline deviation | 35.3% | 43.3% | 43.2% | 35.8% | 40.4% |
right | 17.6% | 28.7% | 25.3% | 22.4% | 24.3%a |
left | 17.6% | 14.6% | 17.8% | 13.4% | 16.1% |
Unspaced dentitions | 40.3% | 31.6% | 31.5% | 26.9% | 33.0%b |