Professor, Department of Orthodontics, University Ceuma (UniCeuma), São Luís, Brazil.
Doctoral student, University Ceuma (UniCeuma), São Luís, Brazil.
J Prosthet Dent. 2020 Feb;123(2):314-321. doi: 10.1016/j.prosdent.2019.03.023. Epub 2019 May 29.
Multidisciplinary treatment needs a common goal, and dentists should understand the esthetic perception of laypeople and the other specialists involved. Such information is sparse.
The purpose of this cross-sectional study was to compare the influence of gingival display on perceived smile esthetics among restorative dentists, orthodontists, prosthodontists, periodontists, and laypeople.
Photographs of the smiles of 2 volunteers (1 female and 1 male) were manipulated on a computer to produce gingival exposure of 1, 3, and 5 mm and central incisor coverage of 3 and 5 mm. The images were evaluated by using a 100-mm visual analog scale by 155 raters divided into 5 groups (restorative dentists, orthodontists, prosthodontists, periodontists, and laypeople).
The dental specialists, mainly orthodontists and periodontists, were more sensitive about alterations in gingival display than the laypeople. For the female smile, higher mean scores were attributed to 1 mm of gingival exposure by all groups of raters. For the male smile, 3 mm of central incisor coverage received higher mean scores, except for the laypeople, who considered gingival display of 1 mm to be more attractive. For both smiles, 5 mm of gingival display was judged to be the least attractive.
Considering the differences in opinion between dental specialists and laypeople and the acceptable variations in gingival display, the preferences of patients should be considered in the diagnosis and treatment decision-making process.
多学科治疗需要一个共同的目标，牙医应该理解非专业人士和其他相关专业人员的审美感知。但此类信息较为匮乏。
本横断面研究的目的是比较修复牙医、正畸医生、修复医生、牙周医生和非专业人士对牙龈显露对微笑美观感知的影响。
通过计算机对 2 名志愿者（1 名女性和 1 名男性）的微笑照片进行操作，分别产生 1、3 和 5mm 的牙龈暴露和 3 和 5mm 的中切牙覆盖。155 名评价者将使用 100mm 视觉模拟评分对图像进行评价，评价者分为 5 组（修复牙医、正畸医生、修复医生、牙周医生和非专业人士）。
牙科专家，主要是正畸医生和牙周医生，比非专业人士对牙龈显露的改变更敏感。对于女性微笑，所有评价者组都认为 1mm 的牙龈暴露具有更高的平均得分。对于男性微笑，除了非专业人士认为 1mm 的牙龈显露更具吸引力外，3mm 的中切牙覆盖获得了更高的平均得分。对于两种微笑，5mm 的牙龈显露被认为最不吸引人。
考虑到牙科专家和非专业人士之间的意见差异以及牙龈显露的可接受变化，在诊断和治疗决策过程中应考虑患者的偏好。
