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Abstract
This research was designed to evaluate the masking effect of resin cement on stained teeth. Sixty disc shaped samples of IPS e.max ceram and sixty disc shaped natural teeth were used in this study. The discs were divided into three groups as follows according to degree of staining; staining was performed using tea solution. Group (1): Twenty discs unstained. Group (2): Twenty discs lightly stained, Group (3): Twenty discs darkly stained.The samples from each group were further subdivided into two equalsubgroups according to the used resin cement: Subgroup (1) :Luted with RelyX veneer cement (white opaque shade). Subgroup (2): Luted with Mojo veneer cement (Movie Star shade).