Relação da inserção do freio labial superior com a linha do sorriso

Abstract

Facial esthetics is straight related to smile, from facial harmony analysis to its relationship with facial anatomical structures, from dental exposition to dental-gingival evalutaion, so that there are specific protocols in order to determinate the smile line and its commitment with estethics. There are some questions about the probable factors that determinate smile esthetics. The aim of this study is to evaluate the relationship between smile line high and the insertion of the upper labium frenulum. Therefore, a clinical evaluation was made in 91 patients with ages between 18-35 years old, which 31 was male and the other 60 was female. 38 of the patients was of white ethnicity and 53 was of black ethnicity. The smile height was clinically evaluated by an operator and classified in high, medium or low according to criteria established by the author. Then, the same operator used a digital caliper to evaluate and classify the insertion of upper labial frenulum, also according to criteria established by the author. For statistical analysis, it was used Linear Correlation Coefficient Pearson. Despite the analysis performed, there was a slight correlation, but not significant between the associated factors to be able to take as the basis for the need or not frenectomy.