In the illustration below,figure "A" is a

A) maxillary central incisor
B) maxillary lateral incisor
C) mandibular canine
D) maxillary canine

Question

In the illustration below,figure "A" is a

A) maxillary central incisor 
B) maxillary lateral incisor 
C) mandibular canine 
D) maxillary canine

Quizplus · Accepted Answer

Figure "A" is a canine because unlike incisors,canines have a cusp.Although maxillary and mandibular canines have the same wedge-shaped outline,long crown and root,and well-developed cingulum,there are numerous subtle differences.Figure "A" is a mandibular canine because it has a slightly shorter root and less developed cusp tip as compared to a maxillary canine.Also note that the crown of the mandibular canine is narrower mesiodistally than the maxillary by about 0.5 mm.

In the Illustration Below,figure "A" Is a