[Retracted] Machine Learning Techniques for Human Age and Gender Identification Based on Teeth X-Ray Images

Table 1

Numbering system and names of teeth.

	Maxillary jaw (upper jaw)			Mandibular jaw (lower jaw)
	Universal numbering	Palmer numbering system	Tooth name	Universal numbering	Palmer numbering system	Tooth name
Right	1	Up. Rt. 8	3rd molar	32	L. Rt. 1	3rd molar
	2	Up. Rt. 7	2nd molar	31	L. Rt. 2	2nd molar
	3	Up. Rt. 6	1st molar	30	L. Rt. 3	1st molar
	4	Up. Rt. 5	2nd premolar	29	L. Rt. 4	2nd premolar
	5	Up. Rt. 4	1st premolar	28	L. Rt. 5	1st premolar
	6	Up. Rt. 3	Canine	27	L. Rt. 6	Canine
	7	Up. Rt. 2	Lateral incisor	26	L. Rt. 7	Lateral incisor
	8	Up. Rt. 1	Central incisor	25	L. Rt. 8	Central incisor
Left	9	Up. Lt. 1	Central incisor	24	L. Lt. 8	Central incisor
	10	Up. Lt. 2	Lateral incisor	23	L. Lt. 7	Lateral incisor
	11	Up. Lt. 3	Canine	22	L. Lt. 6	Canine
	12	Up. Lt. 4	1st premolar	21	L. Lt. 5	1st premolar
	13	Up. Lt. 5	2nd premolar	20	L. Lt. 4	2nd premolar
	14	Up. Lt. 6	1st molar	19	L. Lt. 3	1st molar
	15	Up. Lt. 7	2nd molar	18	L. Lt. 2	2nd molar
	16	Up. Lt. 8	3rd molar	17	L. Lt. 1	3rd molar