牙科复合材料浸泡在饮料中并进行增白处理后的颜色稳定性

IF 1.4 Q3 DENTISTRY, ORAL SURGERY & MEDICINE
S. Korać, Muhamed Ajanović, Aida Džanković, A. Konjhodžić, L. Hasić-Branković, Alma Gavranović-Glamoč, I. Tahmiščija
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引用次数: 10

摘要

目的比较两种不同光固化复合材料在三种液体中浸泡后的颜色稳定性,以及16%过氧化脲(CP)去除变色的效果。材料和方法作为对照组(n=5),在浸泡在速溶咖啡、茶、可口可乐和去离子水中后,评估微杂化物(Z250,3M ESPE)和纳米复合物(Z550,3M ESP)的颜色稳定性。样品每天在37°C的液体中保存4小时,持续30天。此外,在接下来的14天里,施用16%的CP,模拟夜间美白。数字分光光度计用于基于CIEL*A*b*颜色坐标的颜色测量。在基线、浸泡在饮料中后以及牙齿美白程序后测量颜色变化(∆E)。采用混合方差分析和因子方差分析以及Bonferroni的事后检验进行统计评估(p≤0.05)。结果测试的树脂复合材料在浸泡在咖啡和茶中后,其颜色变化超过了可接受阈值(ΔE*>3.48)。纳米复合材料在30天后咖啡变色显著增加(p<0.05)。两种材料的颜色沿咖啡和茶的所有三个L*a*b*轴都发生了显著变化(p<0.05),分别变深、变黄和变红。用16%的CP进行美白可有效去除两种受试复合材料的外部变色。结论咖啡和茶可引起临床可检测的牙齿复合材料颜色变化,并具有累积效应。美白是去除复合修复体表面变色的有效方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Color Stability of Dental Composites after Immersion in Beverages and Performed Whitening Procedures
Objectives The study aimed to compare the color stability of two different light-cured composites after immersion in three liquids and the effectiveness of 16% carbamide peroxide (CP) in removing the discoloration. Material and methods Color stability of a microhybrid (Z250, 3M ESPE) and nanocomposite (Z550, 3M ESPE) was evaluated after immersion in instant coffee, tea, Coca-Cola, and deionized water as a control group (n=5). Samples were kept in liquids for four hours daily at 37°C for 30 days. Furthermore, 16% CP was applied for the following 14 days, simulating night whitening. A digital spectrophotometer was used for color measurement based on the CIEL*a*b* color coordinates. The color changes (∆E) were measured at baseline, after immersion in the beverages, and also after the teeth whitening procedure. Mixed and factorial ANOVA followed by Bonferroni’s post-hoc test were used for statistical evaluation (p≤0.05). Results Tested resin composites showed a color change over the acceptability threshold (ΔE*> 3.48) after immersion in coffee and tea. Nanocomposite reported a significant increase in discoloration in coffee after 30 days (p <0.05). The color of both materials significantly changed (p<0.05) along all three L*a*b* axes in coffee and tea to darker, yellow, and red. Whitening with 16% CP was effective in removing external discoloration in both examined composite materials. Conclusion Coffee and tea induced clinically detectable color changes in dental composites tested, with cumulative effects. Whitening represents an efficient method for the removal of surface discoloration in composite restorations.
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来源期刊
Acta Stomatologica Croatica
Acta Stomatologica Croatica DENTISTRY, ORAL SURGERY & MEDICINE-
CiteScore
2.40
自引率
28.60%
发文量
32
审稿时长
12 weeks
期刊介绍: The Acta Stomatologica Croatica (ASCRO) is a leading scientific non-profit journal in the field of dental, oral and cranio-facial sciences during the past 44 years in Croatia. ASCRO publishes original scientific and clinical papers, preliminary communications, case reports, book reviews, letters to the editor and news. Review articles are published by invitation from the Editor-in-Chief by acclaimed professionals in distinct fields of dental medicine. All manuscripts are subjected to peer review process.
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