Rocha José M, Ramazini Claudia, Rösing Cassiano K
Department of Periodontology, Dental School, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil.
Acta Odontol Latinoam. 2011;24(3):279-82.
It has been suggested that one of the main factors contributing to the perception of esthetics is the position of the gingival tissues in the upper arch. The aim of this study was to evaluate the esthetic perception of dental students regarding different pictures of classical periodontal situations related to the gingival margin. This was an observational cross-sectional study involving 161 dental students. Five clinical situations defined by pictures from books were presented to the students. The cases included unchanged periodontium, gingival smile, uneven gingiva, localized gingival recession and generalized gingival recession. Esthetic perception was evaluated by a Visual Analogue Scale (VAS). The different situations were compared by One-way ANOVA, with Tukey test as post-hoc. The results showed statistically significant differences between groups (p < 0.05). The best esthetics was attributed to the periodontium without changes in shape (7.60 +/- 1.80), followed by gingival smile (6.92 +/- 2.34). The worst esthetic situation in this evaluation was the uneven gingiva (3.45 +/- 2.00). In the intermediate group are the gingival recessions. The perception of localized (5.19 +/- 1.91) and generalized (5.69 +/- 2.18) gingival recession did not differ significantly. This study concluded that different positions of the gingival tissues affect the esthetic perception of smile.
有人认为，影响美观感的主要因素之一是上牙弓中牙龈组织的位置。本研究的目的是评估牙科学生对与牙龈边缘相关的不同经典牙周情况图片的美观感知。这是一项涉及161名牙科学生的观察性横断面研究。向学生展示了由书中图片定义的五种临床情况。这些病例包括牙周组织未改变、牙龈微笑、牙龈不均匀、局限性牙龈退缩和广泛性牙龈退缩。通过视觉模拟量表（VAS）评估美观感知。采用单因素方差分析对不同情况进行比较，并采用Tukey检验作为事后检验。结果显示组间存在统计学显著差异（p < 0.05）。最佳美观效果归因于形状未改变的牙周组织（7.60 +/- 1.80），其次是牙龈微笑（6.92 +/- 2.34）。在该评估中，最差的美观情况是牙龈不均匀（3.45 +/- 2.00）。牙龈退缩处于中间组。局限性（5.19 +/- 1.91）和广泛性（5.69 +/- 2.18）牙龈退缩的感知没有显著差异。本研究得出结论，牙龈组织的不同位置会影响微笑的美观感知。
