Evaluation of the golden proportion in facial soft-tissues of class I and II malocclusion patients

Abstract

Aims: The purpose of this study was to assessment facial soft tissue proportions of class I and II malocclusion patients (18-25) years comparing with the golden proportion using digital photographic images and study the effect of malocclusion on facial aesthetics. Materials and methods: Fourty- eight frontal photographic images were performed using a (Canon EOS 600D, Japan) digital imaging camera of patients aged (18-25) years were selected with symmetrical face, no history of trauma, no orthodontic treatment or cleft lip or palate divided in three groups (class I, class II div 1, class II div 2 malocclusion), each group consisted of 16 patients. 6 landmarks, 13 measures, 13 ratios were used for photographic measurements on Micro Dicom Viewer software. Results: This study shows statistically significant differences between the 3 groups in the vertical proportions (TR-LN: LN–ME), (LN-ME:LC-LN) and (LC-LN: LN-CH) (P