Yago Ryotaro, Kawamoto Chiharu, Wu Di, Mirokuin Takuma, Islam Rafiqul, Yamauti Monica, Sano Hidehiko, Tomokiyo Atsushi
Department of Restorative Dentistry, Graduate School of Dental Medicine, Hokkaido University, Kita 13 Nishi 7, Kita-ku, Sapporo 060-8586, Japan.
Department of Restorative Dentistry, Faculty of Dental Medicine, Hokkaido University, Kita 13 Nishi 7, Kita-ku, Sapporo 060-8586, Japan.
Materials (Basel). 2024 Nov 27;17(23):5815. doi: 10.3390/ma17235815.
This in vitro study aimed to investigate whether color differences in the stained cavity floor simulating recurrent caries can be detected using various restored resin composites. Artificial teeth were made with conventional resin composite (Estellite Sigma Quick A3; ET), and class V cavities were prepared. To simulate the color of caries, a dot was marked in the center of the cavity floor using four different magic pens. The cavities were filled with ET and two universal shade resin composites (UC, Omnichroma; OMI, Essentia Universal; ESS). For photographic analysis, a standard correction color chart was used. The color difference (Δ) between (i) the lab value at the center of the cavity and (ii) the average lab value at 1 mm mesial and distal to the center of the cavity was calculated. The data were statistically746o-way ANOVA ( < 0.05). For visual analysis, 25 dentists were asked to complete a questionnaire to determine whether the color differences were noticeable. In the photographic analysis, UC showed larger Δ values than ET in all colors. Visual analysis revealed higher detection rates for UC than ET. Universal shade resin composite tends to reflect the color of the cavity more effectively than conventional resin composite.
这项体外研究旨在调查使用各种修复性树脂复合材料能否检测出模拟继发龋的染色洞底的颜色差异。用传统树脂复合材料（Estellite Sigma Quick A3；ET）制作人工牙，并制备V类洞。为模拟龋的颜色，使用四支不同的记号笔在洞底中心标记一个点。用ET以及两种通用色度树脂复合材料（UC，Omnichroma；OMI，Essentia Universal；ESS）填充这些洞。为进行照片分析，使用了标准校正色卡。计算（i）洞中心的实验室值与（ii）洞中心近中及远中1mm处的实验室平均值之间的颜色差异（Δ）。数据采用统计学双向方差分析（<0.05）。为进行视觉分析，邀请25名牙医填写问卷以确定颜色差异是否明显。在照片分析中，UC在所有颜色中显示出比ET更大的Δ值。视觉分析显示UC的检测率高于ET。通用色度树脂复合材料比传统树脂复合材料更能有效地反映洞的颜色。
