Analysis of smile aesthetics using the SmileCurves digital template

Abstract

Introduction: The aesthetic analysis of a smile may be facilitated by the use of a template that provides several dental aesthetic references and support for the diagnosis, simplifying it and defining guidelines for the aesthetic planning of orthodontic and integrated treatments. Objective: To describe a simple and objective procedure for the evaluation of smile aesthetics using the SmileCurves digital template (SCT), based on the superimposition of intraoral photographic images and close-up views of a smile. Conclusion: SCT is a simple and objective tool for the aesthetic analysis of a smile.

The smile arc: review and synthesis

“…» Appliance placement/Digital setup: Figuring as the initial step of active treatment, this should be performed aiming at achieving an individualized incisal design, according to the patient's gender and age. 15,[19][20][21][22] In the recent past, with planning focused almost exclusively on occlusion, the concern with the role of canines in laterality movements defined a more occlusal positioning of their cusp tips, when com- (what is more distant seems smaller) and by the occlusal plane inclination, as shown later. 2 In digital planning, it is possible to use tools to guide the upper incisal design, such as the "Smile Curves" template.…”

“… » Appliance placement/Digital setup: Figuring as the initial step of active treatment, this should be performed aiming at achieving an individualized incisal design, according to the patient’s gender and age. 15 , 19 - 22 In the recent past, with planning focused almost exclusively on occlusion, the concern with the role of canines in laterality movements defined a more occlusal positioning of their cusp tips, when compared to the incisal edges of upper central incisors ( Fig 4A ). Currently, the appliances position the edges of maxillary central incisors leveled with the canine cusp tips ( Fig 4B ), since the achievement of correct disocclusion in laterality can be compensated by the more occlusal positioning of mandibular canines.…”

“… 2 In digital planning, it is possible to use tools to guide the upper incisal design, such as the “Smile Curves” template. 15 » Planning of arch leveling: the correction of vertical problems present in the anterior region of dental arches, as increased overbite and open bite, requires planning based on the ideal exposure of maxillary incisors, in lip rest position. 1 , 5 , 6 , 10 , 12 , 13 , 20 Currently, an excellent tool for planning of orthodontic leveling is the “Functional Aesthetic Occlusal Plane” published by Câmara and Martins 20 in 2016.The “FAOP” allows to identify the needs and limits of vertical movement of anterior teeth, favoring the maintenance or achieving the ideal exposure of maxillary incisors in lip rest position.…”

“…4,5 Several other scientific publications also provided well-known and important contributions on this topic. [15][16][17][18] Following are the most known: » The smile arc was considered as "consonant and pleasant" when it looks younger and presents the curvature of the upper incisal line similar to the curvature formed by the lower lip when smiling (presented in the literature as the esthetically most well accepted) (Fig 2A ); "flat", when presents a flattened upper incisal line in relation to the curvature of the lower lip (Fig 2B ); and "inverse", when presents a more aged appearance, in which the upper incisal line forms an opposite curvature to that formed by the lower lip, during social or voluntary smile (Fig 2C). According to Dong et al 7 , 60% of patients present smile types "consonant and pleasant"; 34% present arches type "flat" and 5%, "inverted" (Fig 2C ).…”

“…Several other scientific publications also provided well-known and important contributions on this topic. 15 - 18 Following are the most known:…”