1174MedicalMedium
According to Schour & Massler the crown completion of both permanent maxillary and mandibular first molars is________?
A21⁄2 – 3 years
B3-5 years
C3-4 years
D11⁄2 2 years
Correct answer
A. 21⁄2 – 3 years
Explanation
The correct answer is 21⁄2 – 3 years.