Effect of surface finish on the color stability of different types of restorative materials subjected to various aging media
Date
2004
DOI
Authors
Zeidan, Nadia R.
Version
OA Version
Citation
Abstract
Statement of problem: Rough surface finish of restorative materials shows more discoloration than a smooth finish, as a result of environmental exposure.
Purpose: To compare the color change in four different types of tooth colored restorative materials with two types of surface finish (smooth and rough) after exposure to six separate media environments
Materials and methods: 96 specimens were made from each of the following materials: Z100 composite resin, acrylic resin, Paradigm and MK II. Each group had 16 samples, 8 with smooth surface finish and 8 with rough surface finish. The samples were subjected to 6 environmental aging conditions over a 4-week period: distilled water, coffee, ultraviolet light radiation, 2500 cycles in thermocycling, coffee after 2500 thermocycles, and coffee after bleaching. Color changes (delta E) were measured using a colorimeter for all specimens. Data was analyzed using the analysis of variance (ANOVA) design followed by multiple comparison tests.
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Description
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Thesis (M.S.D.)--Boston University, Henry M. Goldman School of Dental Medicine, 2004 (Biomaterials).
Thesis (M.S.D.)--Boston University, Henry M. Goldman School of Dental Medicine, 2004 (Biomaterials).
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This work is protected by copyright. Downloading is restricted to the BU community. If you are the author of this work and would like to make it publicly available, please contact open-help@bu.edu.