在染色溶液中浸泡后,漂白色复合树脂的四种污点清除方法的比较有效性:一个体外研究
Sedighe Sadat Hashemikamangar1, Shakiba Farahani1, Shaghayegh Khoshgoo2
1Restorative Departments, Dental School, Tehran University of Medical Sciences, Tehran, Iran.
International journal of dentistry
|June 21, 2023
概括
家庭漂白有效地去除复合树脂的污点,恢复原来的颜色. 其他方法的有效性因复合材料和染料类型而异.
科学领域:
- 牙科材料科学 牙科材料科学
- 恢复性牙科 恢复性牙科
- 审美牙科 审美牙科
背景情况:
- 漂白色复合树脂越来越多地用于美观的牙科修复.
- 患者对更白牙的需求推动了牙科材料和美白技术的创新.
- 评估这些材料的去污效果对于长期的美学成功至关重要.
研究的目的:
- 为了比较四种不同的去污方法在漂白色复合树脂上的有效性.
- 为了评估两种特定的复合树脂品牌 (Filtek Z350 XT和Gradia XBW) 用咖啡和酸果汁染色的污点去除.
- 为了确定哪种脱污技术最能恢复复合树脂的基线颜色.
主要方法:
- 72个复合树脂磁盘 (菲尔特克Z350 XT和格拉迪亚XBW) 被制造并用咖啡或酸果汁染色.
- 染色样品被分为四组,以测试污点去除方法:用Soft-Lex磁盘完成,用石膏刷刷,用16%的碳酸过氧化物漂白,或用40%的过氧化漂白.
- 颜色变化 (ΔE) 用光谱仪在去污程序之前和之后进行测量.
主要成果:
- 家庭漂白 (过氧化碳胺和过氧化) 在去除格拉迪亚复合磁盘上的污点方面最有效,几乎恢复了原来的颜色 (酸汁的ΔE = 1.93,咖啡的ΔE = 3.32).
- 软莱克斯光盘在Filtek Z350 XT复合光盘的污点清除方面比石灰更有效,但没有完全恢复原来的颜色 (酸汁的ΔE = 4.11 ,咖啡的ΔE = 4.93).
- 在经过测试的方法中,Filtek Z350 XT显示了比Gradia Direct复合树脂更大的变色.
结论:
- 家庭漂白技术为某些复合树脂提供了优越的去污方法,与石或Soft-Lex磁盘等机械方法相比.
- 除染剂的有效性在不同的复合树脂材料和使用的特定染色剂之间有很大差异.
- 虽然一些方法可以实现临床上可接受的色彩减少,但完全恢复基线色彩是物质和方法依赖的.
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