评估素食牙膏对乳颜色变化和表面性能的影响
Reginna Vyctoria da Trindade Souza de Melo Carneiro1, Raissa Manoel Garcia2, Tais Scaramucci2
1Department of Restorative Dentistry, Piracicaba Dental School, University of Campinas, São Paulo, Brazil.
概括
素食牙膏没有损害牙的硬度,矿物质含量或形态. 然而,这些产品没有提供美白效果,并且在大量刷牙后增加了面膜粗度.
科学领域:
- 牙科材料科学 牙科材料科学
- 生物材料工程是生物材料的工程.
- 口腔健康研究 口腔健康研究
背景情况:
- 素食牙膏越来越多地销售,但科学证据支持它们在牙上有效性和安全性是有限的.
- 评估这些产品对质关键性质的影响对于知情的消费者选择至关重要.
研究的目的:
- 评估各种纯素牙膏对牙质颜色 (ΔE00),白度指数 (ΔWID),表面硬度损失 (SHL),粗度 (Ra),矿物质含量和表面形态的影响.
- 将这些效应与对照剂 (人工唾液) 和标准商用牙膏进行比较.
主要方法:
- 乳块被染色,并使用不同的纯素牙膏和对照剂进行了15,000和30,000次刷牙周期.
- 在不同的时间点测量了颜色变化 (ΔE00, ΔWID),表面硬度损失 (SHL) 和粗度 (Ra).
- 在刷后分析了面矿物质含量 (EDS) 和表面形态 (SEM).
主要成果:
- 在所有测试的纯素牙膏中,没有观察到质硬度或矿物质含量的显著变化.
- 在3万次刷牙周期后,所有牙膏组的牙质粗度 (Ra) 都显著增加.
- 几种纯素牙膏在更高的刷牙周期时显示出增加的颜色变化 (ΔE00),表明可能有染色,没有一种显示出美白效果 (负 ΔWID).
结论:
- 素食牙膏在乳液硬度和矿物质完整性方面安全.
- 这些产品没有提供美白的好处,可能会增加牙的粗性.
- 需要进一步的研究来开发纯素牙膏配方,提供安全性和有效性,包括潜在的美白特性.
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