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Evaluation of Post-Disinfectant Color Changes of Tetric® N-Ceram Shade Guide Tabs in a Simulated Treatment

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The purpose of the study was to evaluate the effect of a chemical disinfectant on the colors of Tetric® N-Ceram shade guide tabs after 1, 2, and 3 years of simulated treatments. Ten shade tabs (1, control; 9, for disinfection) were evaluated for color changes, visually and by chromametry, after disinfection in a simulated treatment. Results showed that ΔE was statistically significantly increasing with time (from year 1 to year 3) reaching to 0.58 units after 3 years of disinfection. The color changes were visually perceptible or noticeable in 15.6% of shade guide tabs (7 out of 45 tabs) after 2 years and in 24.4% of shade tabs (11 out of 45 tabs) after 3 years of treatment. It was suggested that one shade guide should be kept as a control and periodically compared with the shade guide in use, to determine when the shade tabs in use should be replaced or discarded.
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Keywords: COLOR CHANGE; DISINFECTION; SHADE GUIDE; SHADE GUIDE COLOR CHANGE; SHADE GUIDE DISINFECTION; TETRIC® N-CERAM

Document Type: Research Article

Publication date: December 1, 2013

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  • Journal of Biomaterials and Tissue Engineering (JBT) is an international peer-reviewed journal that covers all aspects of biomaterials, tissue engineering and regenerative medicine. The journal focuses on the broad spectrum of research topics including all types of biomaterials, their properties, bioimplants and medical devices, biofilms, bioimaging, BioMEMS/NEMS, biosensors, fibers, tissue scaffolds, tissue engineering and modeling, artificial organs, tissue interfaces, interactions between biomaterials, blood, cells, tissues, and organs, regenerative medicine and clinical performance.
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