A Study to Determine Esthetic Parameters in an Attractive Smile

The study aims at determining some of the ethetic parameters in an attractive smile. This study involved 214 students from the Dharwad SDM College of Dental Sciences who were between the ages of 18 and 25 and had a natural dentition and met the necessary requirements. A frontal photograph of each participant was taken while they were smiling, showing their upper anterior teeth and gingiva. Every student's smile was compared, analyzed, and evaluated. The Z-proportionality test was used to statistically compare the differences between different types of smiles.

Five aspects of the smile were examined. The gender difference in smile type was statistically significant. Average smiles were the most common (48.13%), followed by high smiles (37.38%), and low smiles (14.49%). The downward curvature was the most common with 48.60% followed by straight curvature 42.88% and the lowest common was upward curvature with 8.88%. Straight curvature was the most common followed by parallel curvature and reverse curvature. In total, 64.95% of students touched their maxillary teeth with their lower lip, while 22.43% did not. Furthermore, 12.62% displayed a lower lip that was slightly covering teeth; 64.95% displayed until the second premolar; 32.24% displayed till the first molar; and 2.8% displayed till the canine. Smile analysis must be evaluated in conjunction with the face in order to define esthetic smile rehabilitation. It will provide guidelines for restoring anterior esthetics.