Chen Xiao-Dong, Hong Guang, Xing Wen-Zhong, Wang Yi-Ning
The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China; Department of Prosthetics, Dalian Stomatological Hospital, Dalian, China.
Liaison Center for Innovative Dentistry, Graduate School of Dentistry, Tohoku University, Sendai, Japan.
J Prosthodont Res. 2015 Jul;59(3):172-7. doi: 10.1016/j.jpor.2015.03.001. Epub 2015 Apr 1.
To evaluate the effect of three brands of resin cement on the final color of ceramic veneers.
50 disk-shaped ceramic specimens (IPS e.Max, 0.6mm×8.0mm diameter) and disk-shaped composite resin background specimens (4.0mm×8.0mm diameter) were prepared and divided into 10 groups (n=5). These paired specimens were bonded using ten shades of resin cement (Variolink Veneer, shades LV-3, LV-2, MV, HV+2, HV+3; Panavia F, shades light and brown; and RelyX™ Veneer, shades WO, TR, A3). A spectrophotometer (VITA Easyshade) was used to measure the color parameters (CIE Lab* values) of the paired disks before and after cementation. The color differences (ΔE values) after cementation were calculated and statistically analyzed by the One-way ANOVA (at the significant level p<0.05).
The color parameters of the ceramic disks were measured in terms of the increase in L* value, and the decrease in Cab(*) value after bonding with the resin cement. The ΔE values of ceramic disks after cementation ranged from 1.38 to 7.16. The ΔE values were more than 3.3 when the ceramic disks were cemented with resin cements in shade HV+3 (4.90) and shade WO (7.16). One-way ANOVA of ΔE values revealed significant differences in the resin cement shades.
Resin cements can affect the final color of ceramic veneer restorations, and the extent of this effect varies according to the resin cement shades.
评估三种品牌树脂水门汀对陶瓷贴面最终颜色的影响。
制备50个圆盘状陶瓷试件(义获嘉e.max,直径0.6mm×8.0mm)和圆盘状复合树脂基底试件(直径4.0mm×8.0mm),并分为10组(n = 5)。使用十种色度的树脂水门汀(Variolink Veneer,色度LV - 3、LV - 2、MV、HV + 2、HV + 3;Panavia F,色度浅色和棕色;以及RelyX™ Veneer,色度WO、TR、A3)将这些配对试件粘结在一起。使用分光光度计(VITA Easyshade)测量粘结前后配对圆盘的颜色参数(CIE Lab*值)。计算粘结后的颜色差异(ΔE值),并通过单因素方差分析进行统计学分析(显著性水平p<0.05)。
根据L值的增加和与树脂水门汀粘结后Cab()值的降低来测量陶瓷圆盘的颜色参数。粘结后陶瓷圆盘的ΔE值范围为1.38至7.16。当陶瓷圆盘用色度为HV + 3(4.90)和色度为WO(7.16)的树脂水门汀粘结时,ΔE值大于3.3。ΔE值的单因素方差分析显示树脂水门汀色度存在显著差异。
树脂水门汀会影响陶瓷贴面修复体的最终颜色,且这种影响的程度因树脂水门汀的色度而异。