The cuspid smile is found in approximately 31% of the population. In this smile, the shape of the lips is commonly visualized as a diamond. This smile pattern is identified by the dominance of the levator labii superioris. They contract first, exposing the cuspid teeth. Then the corners of the mouth contract secondarily to pull the lips upward and outward. The corners do not move as much as they do in the commissure smile. The corners of the mouth are often inferior to the height of the lip above the maxillary cuspids.
Often, in this smile pattern, there is a similar inferior turn of the maxillary premolars as opposed to the continuous convexity of a commissure smile, this “gull wing” effect is silhouetted by the gingival tissues, which correspondingly mimic the shape of the upper lip.
In cuspid smiles the maxillary morals are often at or below the incisal edge of the central incisors. Celebrities with this pattern include Eva Longoria, Angelina Jolie, Tom Cruise, and Jennifer Aniston.