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使用天然生物聚合物修改假牙树脂的表面,机械和化学性能

Aftab Ahmed Khan¹, Abdulaziz Abdullah Alkhureif², Meshal Saeed Awaiyer³

¹Aftab Ahmed Khan, PhD, MSc, M.Bioeth, B.D.S., Researcher, Dental Health Department, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia.

Pakistan journal of medical sciences

|November 8, 2023

概括

将阿拉伯 (GA) 添加到聚甲基甲酸 (PMMA) 假牙树脂中,削弱了其表面和机械性能. 增加的GA含量与较差的性能相关,这表明GA可能不适合用于假牙树脂强化.

科学领域:

牙科材料科学牙科材料科学
聚合物科学聚合物科学
生物材料工程生物材料工程

背景情况:

聚甲基甲酸 (PMMA) 是一种常见的假牙基材质.
用天然添加剂增强PMMA的特性是研究的一个领域.
阿拉伯糖 (GA) 是一种具有潜在增强能力的天然多糖.

研究的目的:

为了评估将微米大小的Gum Arabic (GA) 粉末融入PMMA假牙树脂的表面,机械和化学性能的影响.
为了确定PMMA增强的GA的最佳重量百分比.

主要方法:

实验性假牙树脂在PMMA中准备了5%,10%和20%的重量GA.
使用微型CT和SEM评估了表面特性.
测试了纳米硬度,弹性模量和屈曲强度的机械性能.
使用FTIR分析化学特性.

主要成果:

加入GA导致PMMA的表面和散装性能恶化.
机械性能,包括纳米硬度,弹性模量和强度,受到GA添加的负面影响.
在增加GA含量和降低机械强度之间发现了线性相关性.

结论:

不建议在PMMA假牙树脂中使用Gum Arabic (GA) 作为强化剂.
加入GA对PMMA复合材料的表面和机械完整性产生不利影响.
可能需要进一步的研究来探索假牙基材的替代天然强化剂.

关键词:

牙膏树脂是一种牙膏树脂.柔性强度柔性强度是指柔性强度是指柔性的强度.牙阿拉伯语 (GA) 牙阿拉伯语 (GA)纳米印花的使用方法聚甲基甲酸盐 (PMMA) 是一种聚甲基甲酸盐.

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