From which view are only two roots visible on a maxillary first molar?

 # From which view are only two roots visible on a maxillary first molar?

a. Mesial

b. Distal

c. Buccal

d. Lingual

The correct answer is A. Mesial.

On both the maxillary first and second molars from the mesial view, two roots can be seen: the lingual

root and the mesiobuccal root, which is considerably wider buccolingually than the hidden distobuccal root.  On the first maxillary molar, the convex buccal outline of the mesiobuccal root often extends a little buccal to the crown outline, but the apex of this root is in line with the tip of the mesiobuccal cusp.