Original Article

Year : 2023

Volume : Volume 14

Issue : Issue 5

Influence of Maxillary Incisor Edge Asymmetries on the Perception of Smile Aesthetics among Orthodontists and Laypersons

Palamchi John

Address for correspondence :
Palamchi John
palamchijohn@gmail.com

Abstract


Background: These perceptions of facial aesthetics influence psychological development from early childhood to adulthood. The appearance of the mouth and smile play an important role in judgments of facial attractiveness. Aim and Objectives: This study was conducted to determine the perception of smile esthetics among orthodontists and laypersons with respect to asymmetries of the maxillary incisor edge in a front lower third smile analysis. Materials and Methods: Seven photographs of males and seven photographs of females were used for rating the score using visual analogy by the raters. The photographs were altered digitally to produce incisor edge asymmetry in 0.5 mm increments on the incisor edge of the maxillary left central and maxillary left lateral incisors. Orthodontists and laypersons rated the photographs on a scale of one to ten using a visual analog score. Data were analyzed using SPSS, and independent t-tests and ANOVA tests were used for the statistical analysis. Results: A total of 65 individuals participated in rating the smile photographs of both male and female of the 65 participants, 33 (50.8%) were specialist orthodontists and 32 (49.2%) were laypersons. There is a significant difference in the groups of asymmetry of 0.5 mm, 1 mm central incisor, and 1mm lateral incisor between specialist orthodontists and laypersons for the images of males. Among the female photographs, a statistically significant difference is seen between the two groups for the 0.5mm left lateral Incisor asymmetry. It can be inferred that for the female photographs, the laypersons were not able to differentiate the asymmetry while the specialist orthodontists has differentiated. Conclusion: The orthodontists group was able to note the difference in both male and female smiling lower facial third photographs. The orthodontists were able to differentiate the altered photograph from the original image when maxillary central and lateral incisor edge asymmetry exceeded 0.5 mm for females and males suggesting unacceptable aesthetics that require treatment.