用四种不同的CAM技术制造的陶层面 Veneers的边缘和内部适合的比较
The International journal of prosthodontics
|August 7, 2024
概括
这项研究比较了四种CAD/CAM技术用于陶贴面. 与3D打印的 (PZ) 和热压 (PLD) 面板相比,磨砂 (MZ) 和磨砂二氧化 (MLD) 的边缘和内部适合性更好.
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
- 数字牙科数字牙科
背景情况:
- 计算机辅助设计/计算机辅助制造 (CAD/CAM) 已经彻底改变了牙科假肢的制造.
- 层状贴面是一种常见的美学修复,它们的适合对于临床成功至关重要.
- 评估新的CAD/CAM技术对于优化面板制造至关重要.
研究的目的:
- 评估和比较使用四种不同的CAD/CAM技术制造的陶层 Veneers 的边缘和内部合适度.
- 为了确定不同的CAD/CAM方法是否会产生临床上可接受的陶 Veneers 的合适性.
主要方法:
- 使用四种CAD/CAM技术制造了100个陶层面面板:磨二氧化 (MLD),用3D打印图案的热压二氧化 (PLD),磨 (MZ) 和3D打印 (PZ).
- 在数字显微镜下,通过数字皇冠配件软件虚拟评估边缘和内部合适,并在数字显微镜下使用复制方法物理评估边缘和内部合适.
- 用单向ANOVA和Tukey测试分析数据,以确定组之间的显著差异.
主要成果:
- 在四种CAD/CAM制造技术中观察到边缘和内部适合的显著差异 (P < .001).
- 使用热压二氧化 (PLD) 和3D打印 (PZ) 制造的面膜,与磨二氧化 (MLD) 和磨 (MZ) 相比,其边缘和内部差距更大.
结论:
- 所有四种评估的CAD/CAM技术 (MLD,PLD,MZ,PZ) 都产生了临床上可接受的边缘和内部适合的陶层 Veneers.
- 研磨 (MZ) 和研磨离 (MLD) 技术显示,与3D打印 (PZ) 和热压离 (PLD) 与3D打印图案相比,边缘和内部适合性更好.
相关概念视频
Veneer
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Veneer refers to a thin sheet of wood, typically produced to a thickness of about one-eighth of an inch or less. This material is crafted through various methods, the most common being rotary cutting. In this process, a log is mounted into a large lathe and spun against a knife edge, peeling off a continuous strip of wood as the knife penetrates deeper into the rotating log, creating a rotary-cut veneer.
Other veneering techniques include plain-slicing, quarter-slicing, and rift-slicing. These...
Other veneering techniques include plain-slicing, quarter-slicing, and rift-slicing. These...
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Brick Cutting Techniques
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Brick-cutting techniques involve various tools and methods to shape bricks for construction. A mason's hammer with a chisel-pointed end is used for basic shaping through sharp, precise strikes. For more complex shapes requiring higher precision, a power saw with a water-cooled diamond blade is used.
Cut bricks are categorized by size. Bricks cut to half their original length are called half-bats, while those cut to three-fourths their length are known as three-fourth bats.
Special types of...
Cut bricks are categorized by size. Bricks cut to half their original length are called half-bats, while those cut to three-fourths their length are known as three-fourth bats.
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