Table 1.

Description of teeth samples used in this study including age, sex, population affinity and Spanish region.

	Patient	Age	Sex	Population Affinity	Spanish Region
Training Set	1	19	Male	Caucasian	Asturias
	2	19	Female	Caucasian	Catalonia
	3	21	Male	Caucasian	Catalonia
	4	28	Male	Caucasian	Asturias
	5	34	Male	Caucasian	Asturias
	6	38	Male	Caucasian	Catalonia
	7	39	Male	Caucasian	Asturias
	8	39	Male	Caucasian	Catalonia
	9	40	Male	Caucasian	Asturias
	10	42	Female	Caucasian	Asturias
	11	42	Male	Caucasian	Catalonia
	12	50	Female	Caucasian	Asturias
	13	52	Female	Caucasian	Asturias
	14	69	Male	Caucasian	Asturias
	15	70	Male	Caucasian	Asturias
Validation Set	1	28	Female	Caucasian	Asturias
	2	34	Male	Caucasian	Asturias
	3	43	Female	Caucasian	Asturias
	4	52	Female	Caucasian	Asturias
	5	53	Female	Caucasian	Asturias