الفهرس 
AcknowledgmentOnly 14 pages are availabe for public view
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Abstract
Introduction: The present study was done to evaluate the influential level of upper anterior teeth length variation on the perception of esthetics and to find out whether this perception was affected by occupation, age, gender or marital status of the raters.Methods:10 male and 10 female photos were captured, cropped and rated to select the most attractive male and female photo. Five views were constructed for each image with variable lengths of the upper anterior teeth; those 10 views were judged by 10 orthodontists, 10 laypersons and 10 dentist judges to select the most attractive male and female image. Results: No significant No significant No significant No significant No significant No significant difference was found between the mean scores of female and male raters difference was found between the mean scores of female and male raters and of the adult young group raters concerning and of the adult young group raters group raters concerningand of the group raters concerning all images all images Conclusion: The occupation, age, gender and marital status of the raters played no role in the perception of smile attractiveness, The view with all the anterior teeth at the same level was the most preferred view among the female images, while the view with the laterals shorter than canines and centrals by 0.5 mm was the most preferred for the male images.