基于聚 (n-丁甲酸盐) 或聚 (n-异-丁甲酸盐) 的实验光固化模式树脂的物理性质
Akihiko Kadokawa1, Sadaaki Murahara1, Hiroshi Kono2
1Department of Fixed Prosthetic Dentistry, Kagoshima University Graduate School of Medical and Dental Sciences.
Dental materials journal
|July 10, 2024
概括
使用聚-异-丁甲基酸盐 (PiBMA) 的新型光固化模式树脂的收缩率降低,这使得它们在牙接应用中具有潜在的用途. 虽然硬度和强度低于商业选择,但它们的尺寸稳定性是有希望的.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 牙科材料 牙科材料
背景情况:
- 光固化模式树脂对于牙科假体和接程序至关重要.
- 适当的尺寸稳定性和受控的聚合缩小是图案树脂的关键性质.
研究的目的:
- 开发和评估具有更好的维度稳定性的实验光固化模式树脂.
- 将新型树脂的物理特性 (包括聚合收缩) 与商业标准进行比较.
主要方法:
- 实验性光固化树脂的制造使用聚乙烯基甲基酸或聚乙烯基甲基酸 (PiBMA) 聚合物和甲基酸单体.
- 物理性质的确定:残余灰,维克尔硬度,屈曲强度和体积聚合缩小.
- 与商业模式树脂Palavit G (PG) 的比较分析.
主要成果:
- 与Palavit G.相比,实验性树脂的维克尔硬度和屈曲强度较低.
- 基于PiBMA的树脂表现出比Palavit G.显著更低的体积聚合收缩.
- 一些实验性树脂显示,其余灰含量低于Palavit G.
结论:
- 用PiBMA配制的烯酸光固化树脂材料提供了减少的聚合收缩.
- 这些基于PiBMA的树脂在接应用中显示出对图案和索引的潜在实用性.
- 进一步的研究可能会为更广泛的临床应用优化机械性能.
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