Nowakowska-Toporowska Agnieszka, Raszewski Zbigniew, Wieckiewicz Wlodzimierz
Assistant, Department of Prosthodontics, Wroclaw Medical University, Wroclaw, Poland.
Laboratory technician, Department of Prosthodontics, Wroclaw Medical University, Wroclaw, Poland.
J Prosthet Dent. 2016 Mar;115(3):377-80. doi: 10.1016/j.prosdent.2015.08.022. Epub 2015 Nov 6.
The interaction between artificial saliva and color change of silicone soft liners has not been clarified.
The purpose of this in vitro study was to investigate the effect of artificial saliva storage on the color stability of soft silicone liners.
Four silicone-based liners (Elite Soft Relining, GC Reline Soft, Megabase, and Mucopren Soft) (n=10) were tested after 7, 30, and 90 days of storage in artificial saliva at 37°C in darkness. The color of each specimen was measured with a spectrophotometer using the CIELab color scale. Statistical analysis was performed with the nonparametric ANOVA for dependent variables and nonparametric ANOVA for independent variables (α=.05).
The storage in artificial saliva significantly affected the color integrity of 3 of the 4 tested materials. For GC Reline Soft material, the time of storage had no significant effect on color.
Significant differences were found in the color changes of silicone-based denture liners after storage in artificial saliva. With regard to color stability, GC Reline Soft may be recommended for use in dental practices as a silicone soft relining material for long-term applications.
人工唾液与硅橡胶软衬垫颜色变化之间的相互作用尚未明确。
本体外研究的目的是调查人工唾液储存对硅橡胶软衬垫颜色稳定性的影响。
将四种硅基衬垫（Elite Soft Relining、GC Reline Soft、Megabase和Mucopren Soft）（n = 10）在37°C黑暗环境下于人工唾液中储存7天、30天和90天后进行测试。使用CIELab色标用分光光度计测量每个样本的颜色。对因变量进行非参数方差分析，对自变量进行非参数方差分析（α = 0.05）。
在人工唾液中储存显著影响了4种测试材料中的3种的颜色完整性。对于GC Reline Soft材料，储存时间对颜色没有显著影响。
硅基义齿衬垫在人工唾液中储存后的颜色变化存在显著差异。关于颜色稳定性，GC Reline Soft作为一种可长期应用的硅橡胶软衬里材料，可能推荐用于牙科实践。
