According to Schour & Massler the crown completion of both permanent m – McqOptions

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1.	According to Schour & Massler the crown completion of both permanent maxillary and mandibular first molars is________________?
A.	1½ 2 years
B.	2½ – 3 years
C.	3-4 years
D.	3-5 years
Answer» C. 3-4 years

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