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Profile Attractiveness in Borderline Class III Surgical/Orthodontic Cases

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Title	Profile Attractiveness in Borderline Class III Surgical/Orthodontic Cases
Author	Adamian, Melina
Abstract	Introduction: This study evaluated differences between laypersons and orthodontists in rating facial attractiveness in borderline class III surgical/orthodontic cases. The purpose was to determine whether orthognathic surgery or camouflage is a better alternative for observable esthetic improvement in borderline Class III surgical/orthodontic patients. This study will aid the orthodontist in recommending treatment options to enhance profile attractiveness of borderline Class III surgical/orthodontic patients. Materials and Methods: Thirty profile images of treated borderline class III surgical/orthodontic cases were selected. Fifteen of the profile images were of cases that had been treated by orthodontics alone, and fifteen images were of cases that had been treated by a combination of orthodontics and surgery. Profile images were modified in Photoshop to mask the face and eyes. Patients selected for this study: 1) were 16-25 years of age, 2) had a half-step or more Class III molar relationship, 3) had a pretreatment ANB greater than -4° and less than 1°, and 4) had a Wits appraisal less than -1.5mm and greater than -4mm. Patients with craniofacial anomalies and skin conditions were excluded from this study. Two groups of thirty raters evaluated the profile images for facial attractiveness by marking a 10 cm visual analog scale. One group of raters was composed of thirty orthodontists and the other group was composed of thirty laypersons. In order to evaluate intra-individual reproducibility of the measuring system, ten duplicate sets of profile images were added to the series. Results: The repeated measures ANOVA F-test results found a statistically significant difference between facial attractiveness scores (p = 0.000), with higher ratings by orthodontists. There was no statistically significant difference between treatment type (p = 0.278). Intraclass correlation results indicate excellent reliability. The ICC was 0.774 (95% CI; 0.733, 0.808). The level of significance was set at α =.05. Conclusions: In evaluating facial attractiveness of borderline Class III surgical/orthodontic cases, laypersons are more critical than orthodontists. Furthermore, surgery or camouflage treatment provides similar esthetic improvement in profile attractiveness in borderline class III surgical/orthodontic patients.
Discipline	Orthodontics and Dentofacial Orthopedics
Department	Orthodontics and Dentofacial Orthopedics
School	School of Dentistry
Advisor	Stacey, Graham
Degree Name	Master of Science
Degree Level	M.S.
Year Degree Awarded	2011
Date (Title Page)	September 2011
Language	English
Subject - LCSH	Facial attractiveness Orthognathic surgery
Subject - Local	Class III surgical/orthodontic cases;
Type	Thesis
Page count	85 p.
Digital format	Application/PDF
Digital Publisher	Loma Linda University Libraries
Copyright	Author
Usage Rights	This title appears here courtesy of the author, who has granted Loma Linda University a limited, non-exclusive right to make this publication available to the public. The author retains all other copyrights.
Citation Information	To cite the digital version, include its Reference URL, found by following the link in the gray header above the digital file.
Collection	Loma Linda University Electronic Theses & Dissertations
Collection Website	http://archives.llu.edu/colls/lludis
Repository	Loma Linda University. Del E. Webb Memorial Library. University Archives

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