Masking Potential of Ceramic Veneers in Thin Sections: Effect of Ceramic Type, Ceramic Thickness, Background Color and Framework Addition

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Purpose of the study: Evaluate the influence of ceramic type, tooth color, and presence of framework on the masking potential of ceramic veneers. Materials and methods: Two types of CAD/CAM milling blocks were used to prepare thin veneer sections: a glass ceramic (IPS Empress CAD, Ivoclar vivadent, Shaan, Liechtenstein) and a ceramic-filled resin (LAVA Ultimate, 3M ESPE, Seefeld, Germany). Different shades and translucencies of each material were sectioned into 0.5, 1 and 1.5 mm thick slabs. Nine shades of natural dentin dies were prepared by incremental layering and polymerization of resin composite material to act as a background for the prepared veneers. 0.5 mm thick zirconia disks were sectioned (IPS ZirCAd, Ivoclar vivadent, Shaan, Liechtenstein) to act as a framework underneath the ceramic veneers.

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