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使用离子选择性电极和紫外线可见光光谱仪从修复材料中测量化物离子释放

Vinutha Manjunath¹, Raveena P John¹, Vidya G Doddawad²

¹Department of Conservative Dentistry and Endodontics, JSS Dental College and Hospital, JSS Academy of Higher Education and Research, Mysore, Karnataka, India.

Journal of International Society of Preventive & Community Dentistry

|January 27, 2025

概括

传统的玻璃离子体水泥释放的化物最多,其次是树脂修饰的玻璃离子体和体. 离子选择电极和光谱仪方法都准确地测量了牙科材料中的化物释放.

科学领域:

牙科材料科学牙科材料科学
生物材料工程生物材料工程
牙预防预防牙

背景情况:

二次性牙仍然是恢复性牙科的一个挑战.
释放化物的牙科修复材料对于预防复发性牙至关重要.
评估化物释放是了解材料有效性的关键.

研究的目的:

量化和比较三种牙颜色的牙修复材料的化物释放:传统的玻璃离子体水泥 (GC Fuji II),树脂修饰的玻璃离子体水泥 (ACTIVA BioACTIVE-RESTORATIVE) 和Giomer (BEAUTIFIL II LS).
评估离子选择性电极 (ISE) 和光谱仪方法在测量释放中的可靠性.

主要方法:

90个提取的前被分为6组,其中3种材料类型使用ISE或光谱测试进行了测试.
使用标准化方法,随着时间的推移测量化物释放.
进行了统计分析,包括单向ANOVA和Scheffe hoc后期测试,以确定显著差异 (P ≤0.05).

主要成果:

与其他材料相比,传统的玻璃离子体水泥显示出具有统计学意义的最大化物释放量.
用树脂修改的玻璃离子体水泥和吉奥默显示出可比且较低的化物释放水平.
离子选择性电极和光谱仪方法都产生了可比的化物离子度值.

结论:

传统的玻璃离子体水泥表现出优越的化物释放,其次是树脂修饰的玻璃离子体和金体.
离子选择性电极和光谱仪方法可靠且可比,用于量化牙科修复剂释放的化物.
阿利扎林红色染料为牙科材料中的离子估计提供了一种敏感且经济的替代方案.

关键词:

生物活性材料是生物活性材料.复合树脂是一种复合树脂.牙科材料牙科材料化物释放可以释放化物.玻璃离子体水泥的玻璃离子体离子选择性电极的离子选择性电极.在光谱光度测试中,光谱光度测量.

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Fluorescence and Phosphorescence: Instrumentation

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Fluorometers and spectrofluorometers are two types of instruments used for measuring molecular fluorescence. These instruments differ in how they select excitation and emission wavelengths and the type of light sources they utilize. Fluorometers use absorption interference filters to choose excitation and emission wavelengths. The excitation source in a fluorometer is typically a low-pressure mercury vapor lamp that emits intense lines distributed throughout the ultraviolet and visible regions.

UV–Vis Spectrometers

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The absorbance of UV and visible (UV–visible) radiations is measured using a UV–visible spectrophotometer. Deuterium lamps, which emit UV radiation, and tungsten lamps, which produce radiation in the visible region, are used as light sources in UV–visible spectrophotometers. A monochromator or prism is used for diffraction grating, i.e., to split the incoming radiation into different wavelengths. A system of slits is used to focus the desired wavelength on the sample cell.