一种新型低度过氧化漂白凝的效果,该凝含有纳米尺寸的三甲酸和化
Gabriel Pereira Nunes1, Mariana Takatu Marques1, Priscila Toninatto Alves de Toledo1
1Department of Preventive and Restorative Dentistry, Araçatuba School of Dentistry, São Paulo State University - UNESP, Araçatuba, SP, Brazil.
Journal of dentistry
|August 30, 2024
概括
将纳米尺寸的三甲酸 (TMPnano) 和化 (F) 添加到17.5%的过氧化 (H2O2) 漂白凝中,维持了牙美白效果. 这种组合还减少了面膜去矿化,粗性和H2O2扩散,提高了安全性.
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.
- 在牙科的纳米技术.
背景情况:
- 基于过氧化 (H2O2) 的漂白凝广泛用于美学牙科治疗.
- 人们担心H2O2对牙 properties和扩散的潜在不良影响.
- 研究添加剂以减轻这些影响,同时保持有效性至关重要.
研究的目的:
- 为了评估纳米尺寸的三甲酸 (TMPnano) 和化 (F) 与17.5%的H2O2漂白凝结合的体外效应.
- 评估对颜色变化的影响,牙的机械和形态特性,以及H2O2跨牙扩散的影响.
主要方法:
- 牛牙/牙盘经过各种H2O2度和添加剂 (17.5%HP,HP/F,HP/TMPnano,HP/F/TMPnano,35%HP) 的处理.
- 评估包括颜色变化 (ΔE00, ΔWI D),表面硬度 (SH),粗度 (Ra),截面硬度 (ΔKHN) 和H2O2扩散.
- 使用扫描电子显微镜 (SEM) 和能量分散X射线 (EDS) 分析了面形态.
主要成果:
- 所有测试的凝产生了相似的漂白效果 (ΔE*ab, ΔE00, ΔWI D).
- 与对照组相比,含有F/TMPnano的17.5%HP凝显示矿物质损失明显降低 (SH, ΔKHN),粗度降低 (Ra),H2O2扩散减少.
- 在F/TMPnano组中,SEM/EDS分析表明表面变化不那么明显.
结论:
- 将F/TMPnano纳入17.5%的H2O2漂白凝中可以保持漂白效果.
- 这种配方有效地减少了质去矿化,粗,H2O2扩散和形态损伤.
- 使用F/TMPnano的低度H2O2漂白凝代表了更安全,更有效的美学牙科治疗的有希望的方法.
更多相关视频
11:47Evaluation of the Efficacy of Organic Peroxyacids for Eradicating Dairy Biofilms Using an Approach Combining Static and Dynamic Methods
Published on: December 9, 2022
1.6K
05:30Roughness Impact of Piezoelectric Dental Scaler on Two Distinct Flowable Composite Filling Materials
Published on: January 10, 2025
571
相关概念视频
Colloidal precipitates
The high insolubility of some precipitates can result in an unfavorable relative supersaturation. This can lead to colloidal particles with a large surface-to-mass ratio, where adsorption is promoted. For instance, in the precipitation of silver chloride, silver ions are adsorbed on the surface of the colloidal particles, forming a primary layer. This layer attracts ions of opposite charge (such as nitrate ions), forming a diffuse secondary layer of adsorbed ions. This electric double layer...
Coagulation
Colloidal solids are solid particles suspended in solution. They are usually negatively charged, attracting a compact primary layer of positively charged ions, which attract more counterions to form an electrical double layer. Electrostatic repulsion between the charged double layers prevents the particles from colliding, stabilizing the colloids. These solids are often undesirable because they can contain toxins that are difficult to remove. Coagulation is a technique that helps aggregate and...
Carbonation Shrinkage
Atmospheric CO2 penetrates the concrete's pores and, in the presence of moisture, forms carbonic acid, which then reacts with calcium hydroxide in the hydrated cement, forming calcium carbonate. This process reduces the concrete's volume and is termed carbonation shrinkage.
The concrete's permeability is slightly reduced as calcium carbonate produced during the reaction fills its pores. Furthermore, its strength is slightly enhanced as the water released during the reaction facilitates the...
The concrete's permeability is slightly reduced as calcium carbonate produced during the reaction fills its pores. Furthermore, its strength is slightly enhanced as the water released during the reaction facilitates the...
Microbial Leaching
Microbial leaching, also known as bioleaching, is an environmentally favorable method for extracting metals from low-grade ores using specific microorganisms. This biotechnological approach is particularly valuable for mining operations targeting copper, gold, and uranium, where traditional extraction methods may be economically or environmentally impractical.Copper Leaching and Microbial CatalysisIn copper bioleaching, crushed ore is arranged into heaps and irrigated with a dilute sulfuric...
Production of Organic Acids
Lactic acid, an important organic acid extensively applied in food, pharmaceutical, and biodegradable polymer industries, is primarily produced via microbial fermentation. This method is favored over chemical synthesis due to its environmental sustainability and capacity for enantiomerically pure product formation. Among various microbial processes, the fermentation of starch-based substrates stands out due to the abundance and renewability of raw materials like corn and potatoes.Hydrolysis of...
