Publication date: Available online 1 February 2018
Source:Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
Author(s): Cory M. Resnick, Kimberly M. Daniels, Maryann Vlahos
ObjectiveCephalometric analyses have limited utility in planning maxillary sagittal position for orthognathic surgery. In Six Elements of Orofacial Harmony, Andrews quantified maxillary position relative to forehead projection and angulation, and proposed an ideal relationship. The purpose of this study was to investigate the ability of this technique to predict esthetic sagittal maxillary position.Study DesignSurvey study including a male and female with straight facial profiles, normal maxillary incisor angulations, and Angle Class I. Maxillary position was modified on lateral photographs to create 5 images for each subject with Incisor-GALL distances of -4, -2, 0, +2, +4mm. A series of healthcare professionals and lay people were asked to rate each photo in order of attractiveness.Results100 complete responses were received. Incisor-GALL distances of +4mm (41%) and +2mm (40%) were most commonly considered "most esthetic" for the female volunteer (p<0.001). For the male volunteer, there were two peak "most esthetic" responses: Incisor-GALL distances of 0mm (37%) and -4mm (32%) (p<0.001).ConclusionRespondents considered maxillary incisor position 2-4mm anterior to GALL most attractive in a female, and 0-4mm posterior to GALL most esthetic in a male. Using these modified target distances, this analysis may be useful for orthognathic surgery planning.
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Παρασκευή 2 Φεβρουαρίου 2018
Does the andrews facial analysis predict esthetic sagittal maxillary position?
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