聚合物牙膏及其控制牙外部污染的能力
Raissa Manoel Garcia1, Letícia Maria Balbino Rigo1, Leonardo Custódio Lima1,2
1Department of Restorative Dentistry, University of São Paulo, School of Dentistry, São Paulo, São Paulo, Brazil.
概括
实验性牙膏 (ET) 是为了防止和去除外部牙污点而开发的. 与常规牙膏相比,酸铁 (PP) 牙膏表现出优异的脱能力.
科学领域:
- 牙科材料科学 牙科材料科学
- 聚合物化学 聚合物化学
- 表面科学是一门科学.
背景情况:
- 牙外部污点是一个常见的美学问题.
- 牙膏通常含有磨料来去除污点.
- 聚合物可以提高牙膏在污管理中的有效性.
研究的目的:
- 合成和评估含有四种不同聚合物的实验性牙膏 (ET),以检测它们在防止和去除外部牙污点方面的有效性.
- 为了比较ET的防污性能与普通牙膏 (RT) 和对照剂.
主要方法:
- 四个ET的配方包括线性多酸盐 (LPP),酸盐 (CHI),六甲酸盐 (HMP) 或酸盐 (PP).
- 牙样本经历了循环染色和清洁方案,包括赫西丁,染色,人工唾液和刷牙.
- 颜色变化参数 (ΔEab, ΔE00, ΔWID, ΔL, Δa, Δb) 在基线和21个周期后进行测量.
主要成果:
- 与对照和RT (p < 0.01) 相比,含有5%酸 (PP) 的ET显示出明显较低的DEab和DE00值.
- 含有PP的ET表现出较高的ΔWID,表明更大的美白效果.
- 在各组之间没有观察到 ΔL 和 Δb 的显著差异,但在 ET 5% PP 和对照组之间观察到 Δa 的显著差异 (p = 0.01).
结论:
- 实验性牙膏在防止和去除外部污点方面表现出不同的效果.
- 与普通牙膏和单独刷牙相比,含有酸盐 (5% PP) 的牙膏在减少外部牙污垢方面表现优越.
- 这些发现表明,结合特定的聚合物,如酸,可以增强牙膏的污染控制能力.
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