柔软的重新覆盖材料的拉力强度与CAD-CAM假牙基材的拉力强度
Rui Li1, Ahmed Al Mozayen1, Tyler McCluskey1
1Department of Restorative Dentistry, School of Dental Medicine, University at Buffalo, Buffalo, New York, USA.
概括
柔软的再线材料的拉伸键强度随着假牙基类型而有很大变化. 在磨削的IvoBase上,Lynal表现出最高的结合强度,而3D打印树脂表现出最低的结合强度,这表明材料依赖.
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
- 牙修复 牙修复 牙修复 牙修复 牙修复
背景情况:
- 柔软的重新覆盖材料可以提高假牙的舒适性和适合性.
- 了解连线材料和假牙基之间的结合强度对于临床寿命至关重要.
- 牙膏基材的组成和制造方法各不相同,可能会影响接口粘附.
研究的目的:
- 为了评估两种常见的椅子侧软翻层材料和各种假牙基材质之间的抗拉强度.
- 为了比较热压缩,磨和3D打印假牙基质树脂的结合性能.
- 为了确定不同材料组合对reline-denture基础接口的耐用性的影响.
主要方法:
- 标本由热压缩PMMA,两种磨PMMA类型和三种3D打印树脂制造.
- 两种柔软的再线材料 (Coe-Soft和Lynal) 被应用到假牙基样本上.
- 在24小时的水储存后,根据ISO 23401:2023标准测量了拉伸键强度,并使用双向ANOVA分析了数据.
主要成果:
- 在假牙基材之间观察到拉伸键强度的显著差异 (p < 0.001).
- 用林重新制的IvoBase表现出最高的结合强度 (0.5 ± 0.06 MPa),符合临床可接受性标准.
- 在3D打印的Lynal-relined FotoDent显示了最低的结合强度 (0.09 ± 0.02 MPa).
- 与Coe-Soft相比,Lynal对PMMA基具有更高的结合强度,但与3D打印基没有发现显著差异.
结论:
- 柔软的复合材料对假牙基的抗拉强度受到使用的特定材料的显著影响.
- 与3D打印树脂相比,磨砂假牙基材,特别是IvoBase,与Lynal的结合性更强.
- 对假牙底部和柔软的再线材料进行临床选择对于实现耐用和可靠的假牙至关重要.
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