School of Dentistry, Kaohsiung Medical University, 807 Kaohsiung, Taiwan, ROC.
J Dent. 2011 Dec;39 Suppl 3:e11-6. doi: 10.1016/j.jdent.2011.10.001. Epub 2011 Oct 8.
For dental prostheses, colour choice is a main concern. The present spectrometric study analyzes healthy gingiva to develop a shade guide for pink aesthetics.
A reflectance spectrometer and an external light source were set up in a 45/0-degree optical configuration to measure the colour of gingiva over the maxillary anterior area. A total of 362 human subjects with healthy gingiva were divided into groups according to sex and age. The Commission Internationale de l'Eclairage L*, a*, and b* (CIELAB) values and differences in colour (ΔE) were measured. A two-way analysis of variance (ANOVA) test and cluster analyses were used to analyse the data.
There are significant differences in the gingival colour by sex (ΔE > 3.7). The mean CIE L* value of female gingiva is significantly higher than that of male gingiva (p < 0.05). No significant differences were found between age groups. 10 categories for gingival colour are established.
The gingival colour of females is lighter than that of males. The proposed colour classification can be used as a gingival shade guide reference by dental laboratory technicians.
对于牙科修复体，颜色选择是主要关注点。本光谱研究旨在分析健康牙龈，以开发粉红色美学的比色指南。
在 45/0 度光学配置中设置反射分光光度计和外部光源，以测量上颌前区牙龈的颜色。共有 362 名健康牙龈的人类受试者根据性别和年龄分组。测量国际照明委员会 L*、a* 和 b*（CIELAB）值以及颜色差异（ΔE）。使用双向方差分析（ANOVA）检验和聚类分析来分析数据。
性别导致牙龈颜色存在显著差异（ΔE>3.7）。女性牙龈的平均 CIE L*值明显高于男性（p<0.05）。不同年龄组之间无显著差异。建立了 10 种牙龈颜色类别。
女性的牙龈颜色比男性更浅。所提出的颜色分类可作为牙科实验室技术人员的牙龈比色指南参考。
