The mesial view of this tooth considers the portion of the tooth visible from the side closest to where the middle line of the face would be.the mesial axis should be parallel to the midline.
The mesial side of the maxillary central incisor shows the crown of the tooth as a triangle with the point at the incisal edge and the base at the cervix.
The root appears cone shaped with a blunt apex.
Unlike most other teeth, a line drawn through the center of the incisal edge will also cross through the center of the root apex.
This also occurs in maxillary lateral incisors.

The crest of curvature for the palatal and labial surfaces is located directly incisally to the cervical line.
The labial surface of the crown is convex from the crest of curvature to the incisal edge.
The lingual surface of the crown is convex near the cingulum and near the incisal edge, but for the most part is concave along the surface between those two areas.

More than any other tooth in the mouth, the cervical line from this view curves tremendously toward the incisal.
In an average crown length of 10.5 to 11 mm, the curvature of the cervical line in a maxillary central incisor is 3 to 4 mm.
The mesial view of this tooth considers the portion of the tooth visible from the side closest to where the middle line of the face would be.the mesial axis should be parallel to the midline. The mesial side of the maxillary central incisor shows the crown of the tooth as a triangle with the point at the incisal edge and the base at the cervix. The root appears cone shaped with a blunt apex. Unlike most other teeth, a line drawn through the center of the incisal edge will also cross through the center of the root apex. This also occurs in maxillary lateral incisors.
The crest of curvature for the palatal and labial surfaces is located directly incisally to the cervical line. The labial surface of the crown is convex from the crest of curvature to the incisal edge. The lingual surface of the crown is convex near the cingulum and near the incisal edge, but for the most part is concave along the surface between those two areas.
More than any other tooth in the mouth, the cervical line from this view curves tremendously toward the incisal. In an average crown length of 10.5 to 11 mm, the curvature of the cervical line in a maxillary central incisor is 3 to 4 mm.
Maxillary central incisor