Perceptual Differences in Smile Macro-Aesthetics Between Dentists and Non-Dentists in an Indian Demographic - An Evaluative Study
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Published on: February 2, 2020
Rohit P John1, Divya Krishnamoorthy, Sunantha Selvaraj
1Department of Prosthodontics and Crown and Bridge, Vinayaka Mission's Sankarachariyar Dental College, Vinayaka Mission's Research Foundation (Deemed to be University), Salem, Tamil Nadu, India.
Background:
Smile macro aesthetics greatly impact treatment planning and patient satisfaction. Perceptual differences between dentists and non-dentists impact clinical decision-making.
Aim:
To evaluate the perceptual differences in five macro-aesthetic smile parameters between dentists and non-dentists among the Indian population.
Study Settings And Design:
A cross-sectional, observational study was conducted by an online survey in 2023, with participants who were dentists and non-dentists from various academic and professional backgrounds.
Methods And Materials:
A total of 322 individuals were divided into two groups: dentists ( n =183) and non-dentists. ( n =139). Standardized frontal smile photographs were digitally modified to alter five macro-aesthetic parameters: buccal corridor width, occlusal cant, gingival display, midline shift, and smile arc, respectively. Participants rated each image on a three-point Visual Analogue Scale (VAS) through Google Forms.
Statistical Analysis:
Data was analyzed utilizing SPSS v24.0. Chi-square and Student's t -tests were utilized to compare responses. A P -value of less than 0.05 was considered statistically significant.
Results:
Dentists showed greater sensitivity to minor aesthetic deviations. Parameters such as excessive gingival display (2 mm) P =0.664 and reverse smile arc ( P =0.33) were perceived as unaesthetic by both groups. Non-dentists were more tolerant of variations in buccal corridor ( P =0.01), occlusal cant ( P =0.01), and midline shift ( P =0.01).
Conclusion:
Dentists care more about symmetry and quantitative differences, while non-dentists care more about how the teeth look in general. Good communication between patients and dentists is necessary to make sure that aesthetic goals match clinical decisions.
