This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Identification, Subject name: Forensic Medicine
Which is the first permanent tooth to erupt 
Select and explain. 
A. 1st Molar, B. Premolar, C. Lateral incisor, D. Central incisor
A: 1st Molar
Answer: A: 1st Molar 
Explanation: Period of eruption of permanent teeth First molar 6-7 years Medial incisors 7-8 years Lateral incisors 8-9 years First premolar 9-10 years Second premolar 10-11 years Canines 11-12 years Second molar 12-14 years Third molar 17-25 years Ref: FORENSIC MEDICINE AND TOXICOLOGY Dr. PC IGNATIUS PAGE NO 70