Table 4 Comparison between chronological age and dental age estimated by Cameriere method in males (n = 70).
From: Age estimation using dental and hand-wrist radiography among a sample of Egyptian children
Age group | Chronological age (years) | Estimated dental age (years) | Mean difference (years) | P value # | Mean absolute error (MAE) | ||
|---|---|---|---|---|---|---|---|
Mean ± SD | Median (years) | Mean ± SD | Median (years) | ||||
8 | 8.58 ± 0.29 | 8.60 | 7.78 ± 0.38 | 7.90 | − 0.80 ± 0.45 | 0.002* | 0.80 |
9 | 9.33 ± 0.26 | 9.30 | 9.05 ± 0.74 | 8.92 | − 0.28 ± 0.87 | 0.168 | 0.68 |
10 | 10.12 ± 0.05 | 10.1 | 10.36 ± 0.16 | 10.36 | + 0.24 ± 0.14 | 0.066 | 0.23 |
11 | 11.47 ± 0.26 | 11.5 | 10.70 ± 0.42 | 10.79 | − 0.77 ± 0.44 | 0.012* | 0.77 |
12 | 12.60 ± 0.39 | 12.8 | 11.50 ± 0.98 | 11.76 | − 1.10 ± 0.63 | 0.027* | 1.09 |
13 | 13.17 ± 0.19 | 13.15 | 12.42 ± 1.23 | 12.51 | − 0.75 ± 1.15 | 0.158 | 1.05 |
14 | 14.76 ± 0.15 | 14.8 | 13.55 ± 0.90 | 14.06 | − 1.21 ± 1.03 | 0.109 | 1.21 |
15 | 15.13 ± 0.05 | 15.1 | 12.85 ± 1.43 | 13.46 | − 2.28 ± 1.45 | 0.028* | 2.28 |
16 | 0 | 0 | 0 | 0 | 0 | 0 | − |
17 | 17.37 ± 0.39 | 17.2 | 14.18 ± 0.35 | 14.06 | − 3.19 ± 0.62 | 0.012* | 3.18 |
Total | 12.07 ± 2.89 | 11.95 | 10.97 ± 2.30 | 10.81 | − 1.10 ± 1.22 | < 0.001* | 1.23 |
