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Table 4 Comparison of accuracy of Willems I and II methods

From: Comparative assessment of the Willems dental age estimation methods: a Chinese population-based radiographic study

Gender

N

Willems I

Willems II

Willems I vs II

CA-DA (mean ± sd)

MAE

CA-DA (mean ± sd)

MAE

I-II (mean ± sd)

p-value

Boys

582

0.44 ± 1.17

0.95

0.57 ± 1.20

1.02

(−)0.13 ± 0.23

0

Girls

629

0.09 ± 1.37

1.00

(−)0.09 ± 1.34

1

0.18 ± 0.08

0

Total

1211

0.26 ± 1.28

0.98

0.23 ± 1.32

1.01

0.03 ± 0.23

0

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BMC Oral Health

ISSN: 1472-6831

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