Table 5. Intra-method comparison between genders of mean dental and chronological ages (DA-CA).

Gender	N	Demirjian		Chaillet		Willems
		Mean DA-CA ± SD (years)	p value	Mean DA-CA ± SD (years)	p value	Mean DA-CA ± SD (years)	p value
Girls	501	+ 0.11 ± 0.81	0.005	- 0.45 ± 0.34	<0.001	0.08 ± 0.80	0.830
Boys	699	+ 0.24 ± 0.80		- 0.12 ± 0.20		0.09 ± 0.80

Independent t-test; p≤ 0.05 = significant