title: Shade evaluation of ceramic laminates according to different try-in materials.
abstract: The porcelain laminate replaces the visible portion of enamel with a ceramic, which is attached to the dental surface. To enhance cosmetic results, a preliminary color matching procedure is performed prior to cementing the veneers. This procedure can be performed using water, water-soluble gel, or try-in paste. The different shades of cement and try-in pastes are intended to obtain better color and esthetics of the final restoration. This study sought to evaluate the shade of ceramic veneers produced by different try-in materials. Forty bovine teeth and 40 ceramic discs (0.6 mm thick) were prepared. The samples were divided into 4 groups (n = 10). For Group 1 samples, no material was used between the tooth and the ceramic, Group 2 interposed samples with water, Group 3 used a water-soluble gel, and Group 4 used try-in paste (value 0). The color was measured with a spectrophotometer, obtaining L*, a*, and b* values to calculate the color difference (ΔE*). The data were subjected to normality tests and 1-way ANOVA. No significant statistical differences were found among the groups, indicating that the different try-in materials had similar effects on the color of the ceramic laminates.
authors.forename: Lawrence Gonzaga
authors.initials: LG
authors.lastname: Lopes
authors.forename: Maysa Magalhaes
authors.initials: MM
authors.lastname: Vaz
authors.forename: Ana Paula Rodrigues
authors.initials: AP
authors.lastname: de Magalhaes
authors.forename: Paula Carvalho
authors.initials: PC
authors.lastname: Cardoso
authors.forename: Joao Batista
authors.initials: JB
authors.lastname: de Souza
authors.forename: Erica Miranda
authors.initials: EM
authors.lastname: de Torres
mesh_terms: D000818:Animals; D002417:Cattle; D002516:Ceramics; D003116:Color; D003764:Dental Materials; D004955:Esthetics, Dental; D013053:Spectrophotometry
chemical_list: D003764:Dental Materials
keywords: color perception tests; dental veneers; resin cements