Egyptian Journal of Forensic Sciences

Table 3 Age distribution of participants with teeth at different stages of root development for right and left mandibular molars (n=1342)

From: Determination of age reference standards based on mandibular third molar root development in a Ugandan population aged 10–22 years

DemirjianStages	Tooth type	No. of teeth	Mean age	SD	Mean difference	t	P-value
D	38 48	62 60	13.0 12.9	1.7 1.7	0.1	0.321	0.748
E	38 48	204 205	15.2 15.1	2.1 2.1	0.1	0.285	0.775
F	38 48	165 170	16.8 16.9	2.0 2.0	-0.1	-0.284	0.776
G	38 48	125 125	18.9 18.9	1.7 1.7	0.0	0.190	0.849
H	38 48	115 111	20.0 20.0	1.5 1.6	0.0	0.170	0.865

Root stages D–H are the 5 stages of Demirjian’s classification, 38 lower left mandibular molar, 48 lower left mandibular molar

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