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  • Title: Impact of altered gingival characteristics on smile esthetics: Laypersons' perspectives by Q sort methodology.
    Author: Batra P, Daing A, Azam I, Miglani R, Bhardwaj A.
    Journal: Am J Orthod Dentofacial Orthop; 2018 Jul; 154(1):82-90.e2. PubMed ID: 29957325.
    Abstract:
    INTRODUCTION: Smile esthetics includes the white esthetics related to the teeth and the pink esthetics related to the mucosa. Many surveys have been conducted to evaluate laypersons' perceptions to altered dental characteristics, but few have focused on the soft tissue factors. This study was designed to determine the perceptions of laypeople to variations in soft tissue esthetics during smile. METHODS: An ideal smile photograph was intentionally altered to produce variations in gingival inflammation, pigmentation, contour, position of free gingival margins (with and without recession), zeniths, and interdental papilla. Sixty-seven images thus produced were rated for attractiveness by 100 laypersons with the Q sort technique. RESULTS: Variations in interdental papilla (black triangles) were the most negatively ranked gingival factor by laypersons closely followed by color changes of the gingiva due to inflammation and pigmentation. Alteration of gingival contour and gingival zenith had the least impact on smile esthetics, and changes in the free gingival margin with and without recession were moderately perceived. Furthermore, laypersons considered unilateral or asymmetric alterations more unesthetic compared with bilateral or generalized alterations for factors such as free gingival margin without the recession, and color changes caused by inflammation and pigmentation. CONCLUSIONS: Laypersons have considerable negative perception to asymmetric gingival alterations and to optical color changes caused due to black triangles, inflammation, and pigmentation of the gingiva. Whereas alteration in gingival contour and zenith have least impact on smile esthetics.
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