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| Number of cases | Mean chronological age (±standard deviation) | Mean dental age (±standard deviation) | Mean difference | p-value | |
|---|---|---|---|---|---|
| Male | 188 | 12.09 (±1.99) | 11.77 (±1.95) | -0.32 | 0.000* |
| Female | 241 | 11.97 (±2.12) | 11.68 (±1.90) | -0.30 | 0.000* |
| Total | 429 | 12.02 (±2.06) | 11.71 (±1.93) | -0.31 | 0.000* |
*Statistically significant difference (Wilcoxon test)
