O papel do incisivo central na percepção de estética e atratividade do sorriso por cirurgiões-dentistas e leigos: uma revisão sistemática

Abstract

The central incisors are the dominant anterior teeth in the dental arch, and can be seen in their full size. They have great importance in the composition of an ideal smile. Although the negative perception of poor positioning of the maxillary central incisors is one of the main reasons for the patient to seek dental treatment, there is a divergence between what is perceived by laypeople and dentists as aesthetic. The objective of the study was to systematically evaluate the differences in aesthetic perception, in order to identify the role of the maxillary central incisor in the perception of aesthetics and attractiveness of the smile by dentists and laypeople. Two reviewers independently searched the literature for eight databases (Pubmed, Lilacs, Ibecs, Web of Science BBO, Scopus, SciELO and The Cochrane Library). A total of 6937 potentially relevant studies were selected, of which 24 met all the inclusion criteria. The following data were extracted from the studies and tabulated: outcomes, study evaluators, number of evaluators, gender and age, method of evaluation, main results, number of photographs evaluated, type of change made in each photograph. The aesthetic perception between laypersons and dental surgeons on the position of the upper central incisor and facial attractiveness was divergent in relation to gingival exposure, antero-posterior position of the central incisor, inclination of the central incisor and similar considering angulation, diastema, midline deviation, Crown height, misalignment, vertical position. Although more delineated studies are needed to compare the difference between aesthetic perception and the ideal position of the central incisor between lay and dental surgeons, there is evidence in the literature that lay people are less perceptive than professionals, especially in small changes.