Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/16961
Title: In-vitro studies on the color stability and masking ability of composite cores and the influence of posts and cores on the shades of all-ceramic systems
Authors: SWAMINATHAN SETHU
Keywords: all-ceramics, composite cores, posts, substrate influence, Delta E
Issue Date: 16-Jan-2005
Source: SWAMINATHAN SETHU (2005-01-16). In-vitro studies on the color stability and masking ability of composite cores and the influence of posts and cores on the shades of all-ceramic systems. ScholarBank@NUS Repository.
Abstract: The aims of these studies are to evaluate the color masking ability of composite cores (BisCoreA? Natural & Opaque, CoreRestore2A? White & Universal, CoreFloA?, TiCore NaturalA?) and the influence of prefabricated post (AesthetipostA?, C-postA?, Parapost plusA?) color on the esthetics of all-ceramic systems (Empress 2A?, FinesseA?, ProceraA?). The study also evaluated the color stability of composite cores and the effect of thickness on its masking ability. A spectrophotometer was used to quantify the color difference. The results revealed that all the composite cores showed intrinsic color changes which stabilized after the first week. Biscore-opaque and Procera exhibited the best substrate color masking ability in their categories and Parapost exhibited the least influence. The thickness of the material had a significant influence in its masking ability. It was evident, when the thickness of the all-ceramic crown was a?? 1.5 mm, the substrate color can negatively influence the esthetics of the restoration
URI: http://scholarbank.nus.edu.sg/handle/10635/16961
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