Ceci Matteo, Rattalino Davide, Viola Matteo, Beltrami Riccardo, Chiesa Marco, Colombo Marco, Poggio Claudio
Department of Clinical-Surgical, Diagnostic and Pediatric Sciences - Section of Dentistry, University of Pavia, Pavia, Italy.
Department of Brain and Behavioural Sciences - Section of Statistic, University of Pavia, Pavia, Italy.
J Clin Exp Dent. 2017 Feb 1;9(2):e231-e237. doi: 10.4317/jced.53110. eCollection 2017 Feb.
The objective of this study was to evaluate the over time color stability of one resin infiltrant (Icon) upon exposure to staining solutions (coffee and wine) compared with one nano-hybrid sealant (Grandio Seal), one transparent fissure sealant with fluoride (Control Seal) and one nanofilled composite (Filtek Supreme XTE).
All materials were polymerized according to manufacturers' instructions into silicon rings (height 1 mm; internal diameter 6 mm; external diameter 8 mm) to obtain specimens identical in size. The specimens were immersed in staining solutions at room temperature over a 28-day test period. The control samples have not been subjected to the staining process. A colorimetric evaluation according to the CIE Lab* system was performed by a blind trained operator at 7, 14, 21, 28 days of the staining process. Shapiro Wilk test and Kruskal Wallis ANOVA were applied to assess significant differences among different materials. Means were compared with Scheffe's multiple-comparison test at the 0.05 level of significance.
In the case of all materials, immersion in solutions resulted in clinically perceivable color changes after 1 week (∆E < 3.3). Lowest CIE L* variation was registered for Control Seal and Grandio Seal both after 1 week and after 1 month, while Icon showed significantly higher variation ( < 0.05). Color coordinate CIE a* varied significantly more for Icon samples ( > 0.05). Color coordinate CIE b* varied similarly for all materials tested ( > 0.05).
Immersion in coffee or red wine resulted in clinically perceivable color changes for all materials tested. Icon showed the highest color variations both after 1 week and 1 month. Icon can fix the initial esthetic problem associated with white spot lesions, but the resin may become more discolored than other materials over time. CIE Lab, color stability, resin infiltrant.
本研究的目的是评估一种树脂浸润剂（Icon）与一种纳米混合封闭剂（Grandio Seal）、一种含氟透明窝沟封闭剂（对照封闭剂）和一种纳米填充复合材料（Filtek Supreme XTE）相比，在暴露于染色溶液（咖啡和葡萄酒）后随时间的颜色稳定性。
所有材料均按照制造商的说明在硅环（高度1毫米；内径6毫米；外径8毫米）中聚合，以获得尺寸相同的标本。在28天的测试期内，将标本在室温下浸泡在染色溶液中。对照样品未经过染色过程。在染色过程的第7、14、21、28天，由一名经过盲法训练的操作人员根据CIE Lab*系统进行比色评估。应用Shapiro Wilk检验和Kruskal Wallis方差分析来评估不同材料之间的显著差异。在0.05的显著性水平下，采用Scheffe多重比较检验对均值进行比较。
对于所有材料，浸泡在溶液中1周后（∆E < 3.3）会导致临床上可察觉的颜色变化。在1周和1个月后，对照封闭剂和Grandio Seal的CIE L变化最小，而Icon显示出显著更高的变化（< 0.05）。Icon样品的颜色坐标CIE a*变化显著更大（> 0.05）。所有测试材料的颜色坐标CIE b变化相似（> 0.05）。
浸泡在咖啡或红酒中会导致所有测试材料出现临床上可察觉的颜色变化。Icon在1周和1个月后均显示出最高的颜色变化。Icon可以解决与白斑病变相关的初始美学问题，但随着时间的推移，该树脂可能比其他材料更容易变色。CIE Lab、颜色稳定性、树脂浸润剂。
