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含有正酸盐颗粒的功能牙科复合材料的组成界限

Amanda Lopes Campos¹, Beatriz Fonseca Vela¹, Lincoln Pires Silva Borges²

¹University of São Paulo School of Dentistry, Department of Biomaterials and Oral Biology, Av. Prof. Lineu Prestes, 2227, São Paulo, SP, 05508-000, Brazil.

Journal of the mechanical behavior of biomedical materials

|June 11, 2023

概括

这项研究探讨了二酸二水合物 (DCPD) 含量如何影响牙复合材料的特性. 最佳配方平衡粘度,机械强度和离子释放,以获得更好的牙科材料.

科学领域:

材料科学材料科学材料科学
生物材料工程生物材料工程
牙科材料科学牙科材料科学

背景情况:

牙科复合材料是广泛使用的修复材料.
优化它们的成分对于临床成功至关重要.
复合材料释放的离子可以促进重矿化.

研究的目的:

研究牙科复合材料中处理性能,转换度 (DC),机械行为和离子 (Ca2+) 释放之间的关系.
评估这些特性作为总无机含量和二酸二水合物 (DCPD) 与玻璃填料的比率的函数.

主要方法:

制备了21种复合制剂,其无机含量 (0-50体积%) 和DCPD:玻璃比率各不相同.
评估的属性包括粘度,直流,断裂性 (K1C) 和14天内的Ca2+释放.
统计分析包括ANOVA和克鲁斯卡尔-瓦利斯试验.

主要成果:

粘度和DC随着较高的DCPD:玻璃比率而增加.
破裂性 (K1C) 保持在高无机分数 (40-50体积%) 时,当DCPD含量限制在30%体积%时.
Ca2+释放与DCPD质量分数呈指数关系,14天后样本Ca2+质量的最大释放量为3.8%.

结论:

配方含有30体积%的DCPD和10-20体积%的玻璃,提供粘度,K1C和Ca2+释放的最佳平衡.
复合材料含有40体积%的DCPD最大限度地释放Ca2+,但可能会损害K1C.

关键词:

生物材料是一种生物材料.正态酸盐是一种正态酸盐.牙科牙科是指牙科的专业.断裂性断裂性断裂性离子释放释放的离子粘度粘度粘度是一种

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