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

Abstract

Purpose: To investigate colour agreement between different shades of Panavia V5 resin cement and their try-in pastes under zirconia-reinforced lithium silicate ceramics. Methods: Forty-four zirconia-reinforced lithium silicate ceramic specimens were prepared at 0.8 AE 0.01 mm thickness. Composite resin tooth-shaded background specimens were obtained in two shades. Resin cement specimens were fabricated at 0.1-mm thickness. Colour difference values (ΔE) between Aquagel and both the try-in paste and resin cement were calculated using the CIE-Lab system. The CIEDE2000 (ΔE00) colour formula was used to determine colour differences. The three-way ANOVA test and a multiple comparisons test were used for statistical analysis (α = 0.05). Results: A statistically significant difference was found between the ΔE00 values obtained from the cement shade colour measurements for all specimens (P < 0.05). According to the three-way ANOVA test, lower ΔE00 values were observed in the try-in paste group compared to the resin cement group. The ΔE00 values were significantly affected by the cement shade and tooth-shaded background (P < 0.05). Conclusions: The colour agreement between the try-in pastes and the corresponding resin cement differed, and the try-in pastes could not mask the dark dental background as much as the corresponding resin cement.

Color Matching between Resin Cements and Try-in Pastes in Glass Ceramics at Different Thicknesses

“…The compatibility of the try-in pastes and the corresponding resin cements of the ZLS specimens with other ceramics in the present study, according to both color evaluation systems, may be due to the use of only 1 shade of resin cements. In a study by Paken et al 32 aquagel was placed between zirconia-reinforced ceramic specimens and tooth-colored substrate. In the other groups, try-in paste and resin cement were placed between the ceramic specimens and tooth-colored substrate material samples, respectively.…”

Clinical Survival Rate and Laboratory Failure of Dental Veneers: A Narrative Literature Review

“…No verification of the veneer color occurred before cementation by using try-paste [49]. Use of dual-cure resin cement for thin veneers (≤1 mm), with HT *, LT *, and MT * glass-ceramics [41,50] Microleakage presented as a dark line at the gingival margin Lack of bonding agent; use of a scaler to remove resin cement; subgingival margin at the dentin or root surface is more likely to be prone to leakage, poor isolation, and tissue management (proper subgingival margin isolation before and during bonding is vital to prevent interference from the sulcular fluids with the bonding surfaces, which causes yellowish discoloration.…”

“…The causes of color failures are summarized in Table 3 [16,17,30,41,[44][45][46][47][48][49][50][51]. Color changes can be caused by the veneer thickness, material type, substrate color, and ceramic color [16,17,41].…”

Capacidade do Laminado Cerâmico conservador de dissilicato de lítio e do cimento resinoso em mascarar diferentes substratos e compatibilidade de cor das pastas try-in

“…As pastas de teste, mais conhecidas como pastas try-in, foram desenvolvidas para serem usadas em provas de cor para restaurações cerâmicas, e são compostas por glicerina pigmentada solúvel em água e diferentes tipos de carga e tem como objetivo mimetizar a consistência e tons dos cimentos resinosos que serão usados posteriormente (93).…”