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Comparison of Shade Changes According to Dry/Wet Condition of Tooth using Intra-Oral Colorimeter  

Choi, Mee-Ra (Dept. of prosthodontics, College of Medicine, Hallym University)
Publication Information
Journal of Dental Rehabilitation and Applied Science / v.26, no.3, 2010 , pp. 265-271 More about this Journal
Abstract
One of the most important aspect of esthetic dentistry is shade selection. Alterations to perception of color can occur as a result of numerous factors, including light source, tooth surface texture, observer's ability, surrounding colors, the angle of observation, light and dark adaptation and others. During the clinical procedures, tooth might be in dry or semi-dry condition. The purpose of this study was to compare the shade changes in wet and dry conditions of natural tooth. Groups of measurement are an initial wet condition as control, dry in 10seconds, 1 minute, 5minutes and 30seconds air dry. Using Shadeeye, color difference(${\Delta}E$) between measurements were analyzed and there were significant differences between groups. But most of the differneces were <3.7 ${\Delta}E$ unit. Such differences are below the threshold for perceivable color mismathces in intraoral condition. Shade selection with an intraoral colorimeter could be changes in dry and wet condition but there might be no significant differences in visual color mathing.
Keywords
Shadeeye; shade selection; colorimeter; tooth dry;
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