评估了三种基于树脂的化水泥在人工唾液中的溶解性
1Muhammad Adeel Ahmed Department of Restorative Dental Sciences, College of Dentistry, King Faisal University, Al-Ahsa, Saudi Arabia.
Pakistan journal of medical sciences
|February 25, 2026
概括
在酸性条件下,基于树脂的化水泥的溶解性增加. 基于MDP的自粘树脂水泥在低pH环境中表现出更好的抗性,表明其适合于此类条件.
科学领域:
- 牙科材料科学 牙科材料科学
- 生物材料研究 生物材料研究
- 聚合物化学 聚合物化学
背景情况:
- 基于树脂的化水泥在牙科修复中至关重要.
- 了解它们在不同pH值下溶解度对于临床寿命至关重要.
- 酸性环境,如口腔中的酸性环境,会影响水泥的稳定性.
研究的目的:
- 为了比较三种不同的树脂基化水泥的溶解度.
- 评估不同pH值 (3.4,6.7和7.0) 对水泥溶解度的影响.
- 为了确定在酸性条件下最稳定的水泥.
主要方法:
- 一项体外研究涉及45个圆盘形样本的三种化水泥.
- 标本被浸泡在pH值3.4,6.7的人工唾液中,并在pH值7.0的蒸水中四周.
- 通过质量损失测量溶解度,使用单向ANOVA和Tukey的HSD测试进行分析.
主要成果:
- 所有的水泥在酸性人造唾液 (pH3.4) 中溶解度显著提高.
- 基于MDP的自粘树脂水泥显示了最低的溶解度 (0.022 ± 0.010 mg/mm3).
- 自粘甲基酸盐基树脂水泥 (非MDP) 和树脂修饰玻璃离子体水泥 (RMGIC) 在pH值3.4.4时具有相似的,更高的溶解度值.
结论:
- pH值显著影响了基于树脂的化水泥的可溶性和降解.
- 酸性条件导致更大的可溶性和潜在的降解.
- 基于MDP的自粘树脂水泥在低pH环境中表现出卓越的稳定性,使其成为首选选择.
更多相关视频
08:20Systematic Approach to Identify Novel Antimicrobial and Antibiofilm Molecules from Plants' Extracts and Fractions to Prevent Dental Caries
Published on: March 31, 2021
7.0K
08:37Sampling Human Indigenous Saliva Peptidome Using a Lollipop-Like Ultrafiltration Probe: Simplify and Enhance Peptide Detection for Clinical Mass Spectrometry
Published on: August 7, 2012
11.9K
相关概念视频
Soundness of Cement
613
The soundness of cement refers to the ability of cement paste to retain its volume after setting. Unsound cement can lead to expansion and structural damage due to the presence of free lime, magnesia, and calcium sulfate. Free lime hydrates very slowly, expanding and causing unsoundness, which is difficult to detect because it intercrystallizes with other compounds. Magnesia also reacts with water, forming crystals that can disrupt the cement's structure. Calcium sulfate can create...
613
Solubility Equilibria: Overview
1.7K
When a substance such as sodium chloride is added to water, it dissolves, forming an aqueous solution. The extent of dissolution is called solubility. The process of dissolution can exist in equilibrium, just like other chemical processes. Solubility equilibria are also called precipitation equilibria because the process of solubility can be reversible. The reverse of the solubility process is called precipitation.
Solubility is important in biological and environmental processes. A notable...
Solubility is important in biological and environmental processes. A notable...
1.7K
Hydration of Cement
1.0K
Hydration of cement is a chemical reaction between cement particles and water. This process occurs primarily through two mechanisms: through-solution and topochemical. In the through-solution process, anhydrous compounds dissolve into their constituents, hydrates form in the solution, and then precipitate from the supersaturated solution. The topochemical process involves solid-state reactions at the cement particle surface. The through-solution process dominates the topochemical process at the...
1.0K
Testing Water Quality
417
When the quality of water for concrete preparation is uncertain, its impact on the setting time of cement and compressive strength of mortar is assessed by comparison with de-ionized or distilled water benchmarks. American Society for Testing and Materials (ASTM) C1602 requires the setting times to be within 90 minutes of the control, British Standard (BS) 3146:1980 allows a 30-minute variance in the initial setting, while British Standards European Norm (BS EN) 1008 specifies initial setting...
417
