Abstract
This article presents a computer-aided design and computer-aided manufacturing (CAD-CAM) guiding device to facilitate the simultaneous preconditioning and cementation of multiunit porcelain laminate veneers (PLVs). The guiding device was designed from the digital cast of the PLVs and definitive cast assembly, with gingival margins 2 mm from the PLV margins and lingual perforations and milled from a transparent polymethyl methacrylate (PMMA) disk. The PLVs were seated in the guiding device during the preconditioning procedures and transferred to the abutment teeth with luting cement loaded on the intaglio surfaces. Excess resin cement was removed while the guiding device held the PLVs in place. This technique provides predictable, accurate, and efficient simultaneous preconditioning and cementing of PLVs.
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