Association of gold proportion of maxillary anterior teeth and dental beauty self-perception of orthodontic patients

Joselene M. Honorato, Sara A. Freire, Giovana C. Venezian, Ana Paula Terossi de Godoi, William Custodio

ABSTRACT: Objective: To evaluate the golden proportion of the perceived clinical crown widths of maxillary anterior teeth in orthodontic treated patients and to assess its association with self-perception of dental esthetic concerns. Methods: A group (n=40) of young adults with fi nalized orthodontic treatment had their pairs (without orthodontic treatment) selected according to gender and age using simple sample randomization. Golden proportion of the maxillary anterior teeth was measured with ImageJ software. Dental esthetic concern was determined by Oral Aesthetic Subjective Impact Scale (OASIS) questionnaire. Data comparison was carried out by Student’s t-test. OASIS scores was evaluated by Mann–Whitney test. Associations were analyzed by logistic regression. All statistical procedures were carried out with α= 5%. Results: Golden proportion was not found between perceived mesiodistal widths of maxillary central incisors and canines in both groups (p<0,05). However, control group presented maxillary central incisors ratios statically closer to the golden proportion and 3.46 (CI:1.38–8.69) times more chance of having a greater perception of esthetic concerns (all P<0.05 vs. case). There was no significant association of the central incisor and canine proportions with dental beauty (P>0.05). Conclusion: Central incisor perceived width is closer to the golden proportion in orthodontic treated patients whose self-perception of dental beauty is greater. Clinical Signifi cance: Patients are more satisfi ed with dental beauty after orthodontic treatment when central incisor crown width is closer to the golden proportion. Mathematical parameters might be useful to guide clinicians looking to restore the harmony of each dental segment separately. To patients, however, their perception of beauty is based on the overall composition of the smile.

Keywords: Dental beauty. Esthetics. Orthodontics. Golden proportion. Anthropometric analysis.

How to cite: citar: Honorato JM, Freire SA, Venezian GC, Godoi APT, Custodio W. Association of gold proportion of maxillary anterior teeth and dental beauty self-perception of orthodontic patients. J Clin Dent Res. 2020 Jan-Apr;17(1):82-91.

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