支柱体几何学对体皇冠保留的影响:一个体外研究
Bayandelger Davaatseren1, Jae-Sung Kwon2, Sangho Eom3
1Department of Prosthodontics, Yonsei University College of Dentistry, 50-1 Yonsei-Ro, Seodaemun-Gu, Seoul 120-752, Republic of Korea.
短基 (Ti-base) 支柱的几何设计显著影响了CAD/CAM金玉冠的保留. 六角形设计提供了优越的保留性,潜在地提高了植入物修复的长期成功.
科学领域:
- 牙科材料科学 牙科材料科学
- 生物材料工程是生物材料的工程.
- 植入式牙科 植入式牙科
背景情况:
- 数字牙科的进步使得基 (Ti-base) 支架能够有效地集成到植入程序中.
- 基支柱是植入物支持的修复中至关重要的组成部分,特别是基冠.
- 了解支柱体几何学在保持中的作用,对于长期的修复成功至关重要.
研究的目的:
- 为了研究短的Ti基支柱的三个不同的几何设计的保留.
- 在模拟的临床条件下比较不同Ti基支柱形状的机械保留.
- 为了评估Ti基支柱体几何对CAD/CAM制造的金玉冠的保留的影响.
主要方法:
- 一项体外研究评估了三个短的Ti基支柱设计 (Geo SRN multibase®,Herilink®,TS Link®),每个4mm高,牙高度为1mm.
- 采用CAD/CAM技术,用树脂修饰玻璃离子体水泥制造定制的基皇冠,将其粘合到Ti基支柱上.
- 拉出测试是在标准化交叉头速度 (1毫米/分钟) 进行的,以量化支柱-皇冠复合体的保持力.
主要成果:
- 在三种Ti基支柱设计中观察到保留力的显著差异 (p < 0.05).
- 平均保持力记录为194.65N (A组),241.33N (C组) 和360.20N (B组).
- 六角形设计 (B组) 呈现出最高的平均保持力,这表明机械保持能力优越.
结论:
- 短的Ti基支柱的几何设计极大地影响了CAD/CAM石皇冠的保留.
- 与其他测试设计相比,六角形的Ti基支柱表现出优越的固定性.
- 建议选择具有增强机械保留性能的Ti基支柱,以提高植入物支持修复的临床寿命.
更多相关视频
05:54Real-Time Dynamic Navigation System for the Precise Quad-Zygomatic Implant Placement in a Patient with a Severely Atrophic Maxilla
Published on: October 18, 2021
07:42Quasistatic Mechanical Testing for Computer-Aided Design and Manufacturing Occlusal Veneers Cemented to Milled Dentin Analog Material
Published on: December 20, 2024
相关概念视频
Conditions of Equilibrium
Internal forces are not considered for conditions of equilibrium because they occur in equal and opposite pairs within the body, effectively canceling each other. As a result,...
Centroid of a Body
For a homogeneous body with constant density, the centroid can usually be found using equations representing a balance of the moments of the body's volume. If the...
Centroid of a Body: Problem Solving
The x-coordinates and y-coordinates of each element's...
Composite Bodies
Composite bodies have widespread applications in mechanical engineering, from automobiles to aircraft to rockets. For example, an automobile wheel comprises...
Eccentric Axial Loading in a Plane of Symmetry
General Case of Eccentric Axial Loading
Consider a member subjected to equal and opposite forces that are applied along a line that does not coincide with the member's neutral axis. In unsymmetrical bending,...
