表面处理对聚乙烯和定制托盘之间的拉伸键强度的影响:一项体外研究
Burada Naga Prathibha1, Manne Prakash1, Surapaneni Hara Gopal1
1Department of Prosthodontics and Crown and Bridge, Sibar Institute of Dental sciences, Takkellapadu, Guntur, Andra Pradesh, India.
Bioinformation
|December 30, 2025
概括
这项研究比较了聚乙烯氧化印记材料与可见光固化 (VLC) 树脂和3D打印的定制托盘的结合强度. 喷砂显著提高了VLC托盘的粘合强度,但不是3D打印托盘的粘合强度.
科学领域:
- 牙科材料科学 牙科材料科学
- 牙修复 牙修复 牙修复 牙修复 牙修复
- 生物材料工程 生物材料工程
背景情况:
- 准确的牙印记对于成功的假牙结果至关重要.
- 定制托盘可以提高印记准确度和假肢适合度.
- 了解材料的兼容性是最佳临床性能的关键.
研究的目的:
- 为了评估聚乙烯 (PVS) 印记材料和两个定制托盘材料之间的抗拉结合强度:可见光固化 (VLC) 树脂和3D打印托盘.
- 为了评估喷砂作为表面处理对两种托盘类型的粘合强度的影响.
主要方法:
- 80个定制托盘 (40个VLC树脂,40个3D打印) 被制造出来.
- 托盘被分为喷砂和非喷砂子组.
- 拉伸键强度测试使用通用测试机进行.
主要成果:
- 与喷砂3D打印的托盘相比,喷砂VLC托盘的粘合强度明显更高.
- 非砂3D打印的托盘显示出比非砂VLC托盘更强的粘合强度.
- 表面处理 (喷砂) 根据定制托盘材料对结合强度产生了不同的影响.
结论:
- 表面处理对于优化PVS打印材料对定制托盘的粘合强度至关重要.
- 定制托盘的材料选择需要仔细考虑表面特性和处理方法.
- 对3D打印牙科材料的表面改造进行进一步的研究是有必要的.
相关概念视频
01:21Plastic Behavior
A material's elastic behavior is characterized by the disappearance of stress once the load is removed, allowing the material to return to its original state. However, when stress surpasses the yield point, yielding commences, marking the onset of plastic deformation or permanent set. This change from elastic to plastic behavior is influenced by the peak stress value and the duration before the load is removed. An intriguing observation occurs when a specimen is loaded, unloaded, and reloaded.
01:24Circular Shafts - Elastoplastic Materials
The study of solid circular shafts under stress shows that within the elastic limit, stress increases directly to the distance from the shaft's center. This relationship holds until the shaft reaches a critical point of stress, beyond which it begins to yield, marking the transition from elastic to plastic deformation. At this crucial juncture, the maximum torque the shaft can endure without permanent deformation is determined, signifying the limit of its elastic behavior.
As torque on the...
As torque on the...