Color agreement between try-in paste and resin cement: Effect of thickness and regions of ultra-translucent multilayered zirconia veneers

Abstract

Background. The current study aimed at identifying the color agreement between try-in pastes and the respective resin cements and investigated the effect of thickness and regions of Ultra-Translucent Multilayered Zirconia Veneers. Methods. A total of 90 cubic zirconia discs were prepared at two different thicknesses (0.5 mm and 0.7 mm) (n=45) in five groups in terms of the shade of the try-in paste and resin cement as follows: Universal, Clear, Brown, White and Opaque. Try-in paste and the respective resin cement were applied between the specimens and composite substrate, respectively, and colorimetric evaluation was carried out using CIE-Lab system. For each specimen, ΔE between the try-in paste and cement was calculated. Data were analyzed with SPSS 17 using Multifactor ANOVA (P<0.05). Results. Multifactor ANOVA results showed that ΔE values were significantly affected by the resin cement shade and the thickness of ceramic veneer (P<0.05). The results showed better shade agreement between the try-in paste and the respective resin cement with thicker ceramic veneers. The results of Tukey HSD revealed that ΔE values for the Clear, Universal and Brown shades were less than those of the White and Opaque shades. Lighter shades exhibited better agreement between the try-in paste and the respective resin cement. Conclusion. Perceptible color difference was found between the try-in pastes and the respective resin cement in most colors investigated. Although, the agreement of the try-in pastes and the respective resin cement was affected by the thickness of zirconia veneers, the different regions of multilayered ultra-translucent zirconia ceramic showed no significant effect.

Colour agreement between try‐in paste and resin cement: effect of background on zirconia‐reinforced lithium silicate

“…Daneshpooy et al 16 revealed colour differences in Panavia V5 resin cement among all shades (universal, clear, brown, white and opaque) of try-in paste and corresponding resin cement under ultra-translucent multi-layered zirconia veneers of two different thicknesses. Similar to the results of this study, the white 18 evaluated the relationship between try-in pastes and corresponding resin cement of different brands, and they concluded that colour differences were found in all shades and for all manufacturers.…”

“…Daneshpooy et al 16 . revealed colour differences in Panavia V5 resin cement among all shades (universal, clear, brown, white and opaque) of try‐in paste and corresponding resin cement under ultra‐translucent multi‐layered zirconia veneers of two different thicknesses.…”

“…However, try-in pastes have to be removed before cementation because the glycerol they contain can negatively affect adhesion between the tooth and the resin cement. 12,13 There have been many studies comparing resin cement and related try-in pastes on different types of restorative materials, 12,[14][15][16][17][18] but no studies are investigating the effectiveness of try-in pastes on zirconiareinforced lithium silicate ceramics. Also, due to limited studies on Panavia V5,, 16 this study was designed to evaluate the correspondence of different shades of Panavia V5 resin cement and their try-in pastes under zirconia-reinforced lithium silicate ceramics.…”

“…There have been many studies comparing resin cement and related try‐in pastes on different types of restorative materials, 12,14–18 but no studies are investigating the effectiveness of try‐in pastes on zirconia‐reinforced lithium silicate ceramics. Also, due to limited studies on Panavia V5,, 16 this study was designed to evaluate the correspondence of different shades of Panavia V5 resin cement and their try‐in pastes under zirconia‐reinforced lithium silicate ceramics. The null hypotheses of this study were as follows: There is no shade difference between try‐in pastes and corresponding resin cement in terms of the colour matching process of zirconia‐reinforced lithium silicate. Try‐in pastes could mask dark dental backgrounds as much as corresponding resin cement. …”

Zircônia ultra translúcida: Revisão de literatura

“…O efeito de espessuras menores da zircônia ultra translúcida, de 0,5 mm e 0,7 mm foi investigado por Daneshpooy et al 23 , a proposta do estudo foi avaliar a correspondência de cores entre as pastas try-in e os respectivos cimentos resinosos quando utilizado esta zircônia, assim como o efeito nas suas multicamadas. Para isso, cinco cores de cimento foram avaliadas e a cor foi mensurada em três regiões diferentes da amostra: cervical, média e incisal para cada camada de cerâmica, simultaneamente.…”