@article {Alshethri:2013:2157-9083:658,
title = "Evaluation of Post-Disinfectant Color Changes of Tetric	extregistered N-Ceram Shade Guide Tabs in a Simulated Treatment",
journal = "Journal of Biomaterials and Tissue Engineering",
parent_itemid = "infobike://asp/jbte",
publishercode ="asp",
year = "2013",
volume = "3",
number = "6",
publication date ="2013-12-01T00:00:00",
pages = "658-664",
itemtype = "ARTICLE",
issn = "2157-9083",
eissn = "2157-9091",
url = "https://www.ingentaconnect.com/content/asp/jbte/2013/00000003/00000006/art00008",
doi = "doi:10.1166/jbt.2013.1125",
keyword = "DISINFECTION, COLOR CHANGE, SHADE GUIDE, SHADE GUIDE DISINFECTION, TETRIC® N-CERAM, SHADE GUIDE COLOR CHANGE",
author = "Alshethri, Salah E.",
abstract = "The purpose of the study was to evaluate the effect of a chemical disinfectant on the colors of Tetric	extregistered 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 E 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.",
}