Relationship between facial golden ratio and malocclusion in Mexican patients who attended the Orthodontics Clinic at Facultad de Odontología de la Universidad Tecnológica de México during 2009 with facial aesthetics criteria evaluated with Marquardt mask

Abstract

Objective: To establish the frequency of patients selected as attractive showing the golden ratio on their faces according to the Marquardt mask and a class I molar relationship. Methodology: Observational research, transversal, retrospective and comparative study. Were collected 65 pictures (19 male and 46 female) from pre-orthodontic treatment patients at UNITEC Orthodontics Clinic with attractive faces according to beauty criteria established by the authors. Molar class was also evaluated among patients. Sample size: discretionary. Sample type: non-probabilistic. The pictures were shown to UNITEC Orthodontics graduate students who were given an evaluation sheet on which they graded patients from the least to the most attractive on a 1 to 5 scale. A study group was made from the results. Paint Shop Pro sc09960 version 7 was used to analyze the images by placing a Marquardt Mask on top of the patient’s picture. Results: Out of the 65 pictures, 64.6% were described as attractive (42 patients) while 35.4% were found not attractive (23 patients). Out of the attractive patients, 57.1% were well proportioned according to the Marquardt Mask and 42.9% were not proportioned. Conclusions: The authors concluded that attractive patients are not always well proportioned. They also don’t present an Angle class I molar relationship.Key words: Golden ratio, Marquardt mask, Angle molar relationship.