新的部分结晶二酸盐CAD-CAM材料的特性
J M Wells1, J W Johnson2, W Lien3
1Jeremy M. Wells, DDS, MS, Maj, USAF, DC, comprehensive dentist, Eielson AFB, AK, USA.
Operative dentistry
|January 7, 2025
概括
与IPS e.max CAD (EMAX) 相比,新的洛登 (LOD) 二氧化 (LS2) 材料显示出优越的光学性能. 洛德的机械和生物性能与埃马克斯的性能相当,提供了一个有前途的替代品.
科学领域:
- 牙科材料科学 牙科材料科学
- 生物材料工程 生物材料工程
背景情况:
- 二氧化 (LS2) 陶广泛用于牙科修复.
- 评估新的,具有成本效益的LS2材料对于临床采用至关重要.
- 与IPS e.max CAD (EMAX) 等已知材料进行比较,可以提供一个基准.
研究的目的:
- 将两个新LS2材料 (Lodden (LOD) 和BeautyZir (BZ)) 的光学,机械和生物特性与黄金标准 (EMAX) 进行比较.
主要方法:
- 通过光谱测量测量的光学特性 (透光参数,不透明参数).
- 机械性能 (屈曲强度,屈曲模量) 使用通用测试机进行测试.
- 通过细胞增殖试验和细胞毒性试验评估的生物相容性.
主要成果:
- 观察到光学和机械性质的显著差异 (p<0.05).
- LOD和BZ的透光度和不透明度比EMAX更高.
- 与BZ相比,EMAX和LOD表现出优越的屈曲强度和屈曲模量.
- 在LS2材料中,细胞增殖或细胞毒性没有显著差异.
- 埃马克斯和LOD的二酸盐含量高于BZ.
结论:
- 新的洛登 (LOD) LS2材料具有增强的光学性能.
- LOD 保持了与已建立的 EMAX 材料相匹配的机械和生物特性.
- 洛德是EMAX的可行的替代品,提供了改进的美学效果与类似的性能.
更多相关视频
06:53Additive Manufacturing of Functionally Graded Ceramic Materials by Stereolithography
Published on: January 25, 2019
14.3K
08:29Multi-material Ceramic-Based Components – Additive Manufacturing of Black-and-white Zirconia Components by Thermoplastic 3D-Printing (CerAM - T3DP)
Published on: January 7, 2019
11.3K
相关概念视频
02:37Metallic Solids
18.2K
Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
18.2K
02:42Ionic Crystal Structures
14.1K
Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
14.1K
02:22Structures of Solids
14.0K
Solids in which the atoms, ions, or molecules are arranged in a definite repeating pattern are known as crystalline solids. Metals and ionic compounds typically form ordered, crystalline solids. A crystalline solid has a precise melting temperature because each atom or molecule of the same type is held in place with the same forces or energy. Amorphous solids or non-crystalline solids (or, sometimes, glasses) which lack an ordered internal structure and are randomly arranged. Substances that...
14.0K