具有不同氧化度的美白牙膏的效果:透到真菌室并改变颜色
Laryssa M M Barbosa1, Taynara S Carneiro2, Michael W Favoreto2
1Department of Restorative Dentistry, Federal University of Paraíba, João Pessoa, Paraíba, Brazil.
Journal of dentistry
|March 20, 2024
概括
具有酸性pH值的美白牙膏会增加过氧化 (HP) 透到真皮室. 然而,即使是高度HP牙膏也比专业治疗更少的美白效果,可能会导致牙敏感性.
科学领域:
- 牙科材料科学 牙科材料科学
- 生物材料是一种生物材料.
- 整形牙科 整形牙科 整形牙科
背景情况:
- 牙美白是一种流行的美容手术.
- 过氧化 (HP) 是大多数美白产品中的活性剂.
- 有关HP透到纸室及其影响存在担忧.
研究的目的:
- 为了评估模拟用含有不同HP度的牙膏刷牙的效果,对真皮腔的透和牙颜色的变化进行了评估.
- 评估这些牙膏的物理化学特性 (度,pH,粘度).
主要方法:
- 49个前被分为七组,包括对照组,美白凝和具有不同HP度 (3-5%) 的牙膏.
- 模拟刷牙协议被应用,然后使用UV-Vis光谱光度测量HP透度.
- 使用光谱光度计 (ΔEab, ΔE00, ΔWID) 评估了颜色变化.
- 使用定位,数字pH计和风力计来测量物理化学性质.
主要成果:
- 具有酸性pH值和更高HP度的牙膏 (例如4%TP) 显示HP透到肉腔的增加.
- 带有性pH值和较高粘度 (例如3%和5%TP) 的牙膏的HP透率较低.
- 6%美白凝 (14×90分钟) 显示了最显著的颜色变化.
结论:
- 酸性美白牙膏可以提高HP的透力,但比专业治疗更少的美白效果.
- 在纸腔中检测到HP,引发了对牙潜在敏感性的担忧.
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