Which tooth is first to erupt in Lower Jaw?
Ans. is 'c' i.e., Incisor o Permanent teeth 1st molar = 6-7 years Central and lateral incisor = 6-8 years Canine and premolar = 9-12 years 2nd molars = 12 years Third molars = 18 years and later o Deciduous teeth Upper Lower Central incisor 7 1/2 Month 6- 1/2 - Month Lateral incisor 8 Month 7 Month Canine 16-20 Month 16-20 Month 1st molar 12-16 Month 12-16 Month 2nd molar 20-30 Month 20-30 Month
First molar
Premolar
Incisor
Canine