First permanent molars begin to calcify at ______________?
Found an error? Read our corrections policy and submit a sourced correction below. You can also share a useful explanation in your own words.
A. About 1 year after birth
C. Before decidous incisors
D. 6 months of intra utrerine life
Found an error? Read our corrections policy and submit a sourced correction below. You can also share a useful explanation in your own words.