Evaluation of the esthetic effect of resin cements on the final color of ceramic veneer restorations
10.3760/cma.j.issn.1002-0098.2015.02.007
- VernacularTitle:树脂粘接剂色调对牙体瓷贴面美学效果的影响
- Author:
Xiaodong CHEN
1
;
Shaopu ZHANG
;
Wenzhong XING
;
Kangru ZHAN
;
Yining WANG
Author Information
1. 大连市口腔医院修复科
- Keywords:
Resin cements;
Dental veneers;
Esthetics,dental
- From:
Chinese Journal of Stomatology
2015;50(2):95-98
- CountryChina
- Language:Chinese
-
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.△E 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 △E 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(△E＞3.3).The △E 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).
