Smile line and occlusion: An epidemiological study

Abstract

Background: Materials and Methods: determine possible significances in the relation of smile line to Angle occlusion class, overbite andoverjet and arch form. AP  Results: Conclusion: and important relation between some occlusal parameters and smile design, which must beconsidered.Within the limitations of such studies, it might be concluded that there is a significantChi-square test indicated that there was a significant difference between the smile design and overbite, overjet and gender but no statistically significant association was found between thesmile design and crossbite, molar Angle classification and arch form.level of <0.05 was set as to be significant.In the present descriptive study, with 212 participants, included were patients with no history of orthodontic treatment, loss or prosthetic replacement of anteriorteeth, extracted teeth, lips with asymmetry or a history of trauma. Chi-square test was used to

The purpose of the present study was to discuss some new concepts of theKey Words:Dental esthetics, occlusion, overbite, overjet, smile line

desirable characteristics of smile tooth display. Due to the increasing application of cosmetic

dental treatments, there is an increasing need for better understanding of the esthetic principles.