[树脂水门汀对陶瓷贴面修复体最终颜色的美学效果评估]

[Evaluation of the esthetic effect of resin cements on the final color of ceramic veneer restorations].

作者信息

Chen Xiaodong, Zhang Shaopu, Xing Wenzhong, Zhan Kangru, Wang Yining

机构信息

The State Key Laboratory Breeding Base of Basic Science of Stomatology & Key Laboratory of Oral Biomedicine Ministry of Education, School of Stomatology, Wuhan University, Wuhan 430079, China.

Department of Prosthodontics, School of Stomatology, Wuhan University, Wuhan 430079, China, Email:

出版信息

Zhonghua Kou Qiang Yi Xue Za Zhi. 2015 Feb;50(2):95-8.

PMID:25908193

Abstract

OBJECTIVE

To evaluate the influence of various shades of resin cements on the final color of an improved lithium-disilicate pressed glass ceramic veneers and analyze the agreement of resin cements and corresponding try-in pastes.

METHODS

Forty-eight artificial maxillary central incisor teeth were sequenced according to the measured color parameters and divided at random into 8 groups (n = 6). These artificial teeth were prepared following veneer preparation protocol. An improved lithium- disilicate pressed glass ceramic materials (IPS e.max Press, Ivoclar Vivadent) were selected as the veneer material. The shape and curvature of each veneer wax pattern were duplicated with the same impression to guarantee the similarity. The ceramic veneer specimens were delivered on the artificial teeth using the corresponding try-in pastes of 8 shades (Variolink Veneer, shades of LV-3, LV-2, MV, HV+2, HV+3; and 3M RelyXTM Veneer, shades of WO, TR, A3) and bonded with the resin cements. A clinical spectrophotometer was used to measure the color parameters of the ceramic veneers before the try-in, during the try-in procedure, and after cementation. ΔE values and C*ab values were calculated.

RESULTS

The result of one-way ANOVA indicated that the color changes of ceramic veneer cementation with resin cements were statistically significantly different in the shades of resin cements (P < 0.001). The ΔE values of ceramic veneer after cementation ranged from 0.93 to 6.79. The color changes of ceramic veneer specimens using the shades of LV-3, HV+3, WO were 3.31, 4.90 and 6.79, respectively (ΔE>3.3). The ΔE values of the ceramic veneer specimens between the resin cements and corresponding try-in pastes were from 0.72 to 1.79 (except the shade of HV+3).

CONCLUSIONS

The LV-3, HV+3, WO shades were able to change the final color of a ceramic veneer. The color of resin cements and corresponding try-in pastes achieved high agreement (except the shade of HV+3).

摘要

目的

评估不同色度的树脂水门汀对改良型二硅酸锂压铸玻璃陶瓷贴面最终颜色的影响，并分析树脂水门汀与相应试戴糊剂的颜色一致性。

方法

根据测量的颜色参数对48颗人工上颌中切牙进行排序，并随机分为8组（n = 6）。按照贴面预备方案对这些人工牙进行预备。选用改良型二硅酸锂压铸玻璃陶瓷材料（IPS e.max Press，义获嘉伟瓦登特公司）作为贴面材料。每个贴面蜡型的形状和曲率用相同的印模复制，以确保相似性。使用8种色度的相应试戴糊剂（Variolink Veneer，色度LV-3、LV-2、MV、HV+2、HV+3；以及3M RelyXTM Veneer，色度WO、TR、A3）将陶瓷贴面试件就位到人工牙上，并用树脂水门汀粘结。使用临床分光光度计在试戴前、试戴过程中和粘结后测量陶瓷贴面的颜色参数。计算ΔE值和C*ab值。

结果

单因素方差分析结果表明，树脂水门汀色度不同，陶瓷贴面粘结后的颜色变化在统计学上有显著差异（P < 0.001）。粘结后陶瓷贴面的ΔE值范围为0.93至6.79。使用LV-3、HV+3、WO色度的陶瓷贴面试件的颜色变化分别为3.31、4.90和6.79（ΔE>3.3）。树脂水门汀与相应试戴糊剂之间的陶瓷贴面试件的ΔE值为0.72至1.79（HV+3色度除外）。