Forensic Medicine : Age determination using number of permanent teeth

Time of appearance of permanent teeth

6-7 yrs - First molar
7-8 - Central Incisor
8-9 - Lateral Incisor
9-10 - Ist Premolar
10-11 - 2nd Premolar
11-12 - Canine
12-14 - 2nd Molar
17-25 - 3red Molar (Wisdom tooth)