相关实验视频

Updated: May 26, 2025

Quasistatic Mechanical Testing for Computer-Aided Design and Manufacturing Occlusal Veneers Cemented to Milled Dentin Analog Material

Quasistatic Mechanical Testing for Computer-Aided Design and Manufacturing Occlusal Veneers Cemented to Milled Dentin Analog Material

Published on: December 20, 2024

不同的制方法对CAD/CAM树脂块的微拉伸键强度的影响

Alexandra Vinagre^1,2, Carla Delgado³, Gabriela Almeida³

¹Institute of Operative Dentistry, Faculty of Medicine, University of Coimbra, 3000-075 Coimbra, Portugal.

Biomimetics (Basel, Switzerland)

|February 25, 2025

概括

这项研究比较了CAD/CAM树脂块的五个制协议. 双Cem树脂水泥表现出最高的微拉伸键强度,而Brilliant EverGlow Flow显示出最低的薄膜厚度.

科学领域:

牙科材料科学牙科材料科学
生物材料是一种生物材料.
牙修复牙修复牙修复牙修复牙修复

背景情况:

新的计算机辅助设计/计算机辅助制造 (CAD/CAM) 材料需要优化制协议才能获得临床成功.
评估化剂的结合强度和薄膜厚度对于确保CAD/CAM修复的寿命至关重要.

研究的目的:

为了评估在CAD/CAM树脂块上的不同合方法的微拉伸键强度 (μTBS).
为了确定各种用于CAD/CAM树脂块的凝固协议的薄膜厚度.

主要方法:

在Brilliant Crios CAD/CAM块上测试了五种发光协议:Brilliant EverGlow (BEG),BEG与超声波 (BEG-US),预热BEG (BEG-H),Brilliant EverGlow Flow (BEGF) 和Duo Cem (DC).
在空气磨损和炼后,测量了微拉力键强度 (μTBS) (每组n=20).
使用光学显微镜分析了故障模式,使用扫描电子显微镜 (SEM) 评估了水泥块接口.

主要成果:

与所有其他组相比,Duo Cem (DC) 的μTBS (81.07 ± 8.75 MPa) 显著更高.
所有Brilliant EverGlow (BEG) 变种都显示出类似的结合强度值,其中BEGF的薄膜厚度最低.
在测试组中,粘合器故障是主要的故障模式.

结论:

在评估的协议中,Duo Cem (DC) 树脂水泥为CAD/CAM树脂块提供了优越的结合强度.
扫描电子显微镜 (SEM) 分析表明,可流动复合材料 (BEGF) 产生了最薄的薄膜.
选择的化剂显著影响CAD/CAM修复的结合强度.

关键词:

在CAD/CAM中使用.薄膜的厚度薄膜的厚度间接的恢复是间接的恢复.微拉力键的强度是微拉力键的强度.树脂复合材料树脂复合材料

更多相关视频

Impact of Fabrication Techniques and Polishing Procedures on Surface Roughness of Denture Base Resins

Impact of Fabrication Techniques and Polishing Procedures on Surface Roughness of Denture Base Resins

Published on: January 17, 2025

Shrinkage of Dental Composite in Simulated Cavity Measured with Digital Image Correlation

Shrinkage of Dental Composite in Simulated Cavity Measured with Digital Image Correlation

Published on: July 21, 2014

相关概念视频

Bonding and Strength of Aggregate

Bonding and Strength of Aggregate

The bond between aggregate particles and the cement matrix is significantly influenced by the shape and surface texture of the aggregates. High-strength concretes benefit from a rougher texture, which leads to stronger bonding due to greater adhesion. Angular aggregates with larger surface areas also enhance this bond. The bonding quality, however, is complex to assess as no universally accepted test exists. Good bonding is indicated when a crushed concrete specimen shows some aggregate...

Microcracking in Concrete

Microcracking in Concrete

Microcracking in concrete refers to the tiny cracks that can form within the material even before any external load is applied. These microcracks typically occur at the interface between the coarse aggregate and the hydrated cement paste, often as a result of differential volume changes prompted by variations in stress-strain behavior, as well as thermal and moisture movement. Initially, these microcracks remain stable and do not grow substantially until the concrete is stressed to about 30...

Mortar Properties

Mortar Properties

Mortar properties encompass a range of characteristics crucial for construction and masonry work, including workability, water retention, bond strength, durability, compressive strength, volume change, and appearance. Workability refers to mortar's ability to be easily applied and manipulated without sagging or falling off surfaces, which is important for efficient masonry unit placement and alignment. Water retention is essential to prevent the mortar from losing moisture too quickly to...