与传统的基结构相比,面对各种三维打印树脂的结合强度高于传统的基结构
Berna Özcan1, Tuğgen Özcivelek2
1Department of Prosthodontics, Gülhane Faculty of Dentistry, University of Health Sciences, Türkiye Gen Dr Tevfik Saglam St. No: 1 Kecioren, Ankara, Türkiye, Turkey.
BMC oral health
|September 24, 2025
概括
评估了弹性体与3D打印树脂的结合强度,用于面假肢. 与PEEK和PEKK材料相比,老化的手术指南和假牙基树脂显示出优越的粘合性.
科学领域:
- 生物材料科学 生物材料科学
- 牙科材料科学 牙科材料科学
- 聚合物科学 聚合物科学
背景情况:
- 将弹性体粘合到刚性基结构是面假肢的关键.
- 研究与传统和3D打印树脂的结合强度对于临床成功至关重要.
研究的目的:
- 评估面与各种3D打印树脂的结合强度.
- 为了确定人工老化对这些材料的结合强度的影响.
主要方法:
- 七个树脂基结构被粘合到面使用一个原料.
- 结合强度是通过180°剥离试验测试的,有或没有人工老化 (360小时).
- 标本包括传统的烯酸和3D打印树脂 (手术指南,假牙基,PEEK,PEKK).
主要成果:
- 基结构材料,老化和它们的相互作用显著影响了剥离键强度 (p<0.001).
- 陈旧的手术指南和假牙基树脂的结合强度明显高于陈旧的PEEK和PEKK.
- 混合性故障是最常见的 (71.4%),其次是粘合性 (20%) 和凝聚性 (9%).
结论:
- 3D打印的手术指南和假牙基树脂在人工老化后表现出增强的结合强度.
- 与传统树脂和3D打印PEEK/PEKK相比,这些材料表现出优越的性能.
- 研究结果支持使用特定的3D打印树脂来提高面假肢的耐用性.
相关概念视频
Introduction to Structures
2.5K
A structure is defined as a system of interconnected members designed to support or transfer forces and successfully withstand the loads acting on them. The internal forces of a structure can be determined by decomposing the structure and analyzing the free-body diagrams of the individual members or of a combination of members. This helps in understanding the structural elements' behavior and ensuring that the structure is stable and can withstand the subjected loads.
There are three main...
There are three main...
2.5K
Space Trusses
2.1K
A space truss is a three-dimensional counterpart of a planar truss. These structures consist of members connected at their ends, often utilizing ball-and-socket joints to create a stable and versatile framework. The space truss is widely used in various construction projects due to its adaptability and capacity to withstand complex loads.
At the core of a space truss lies the fundamental unit known as the tetrahedron. This structure is composed of six members that form a three-dimensional shape...
At the core of a space truss lies the fundamental unit known as the tetrahedron. This structure is composed of six members that form a three-dimensional shape...
2.1K
Bending of Members Made of Several Materials
764
In analyzing a structural member composed of two different materials with identical cross-sectional areas, it is crucial to understand how their distinct elastic properties affect the member's response under load. The analysis involves assessing stress and strain distributions using the transformed section concept, which accounts for variations in material properties.
Hooke's Law determines stress in each material, stating that stress is proportional to strain but varies due to each material's...
Hooke's Law determines stress in each material, stating that stress is proportional to strain but varies due to each material's...
764
Structural Properties and Dimensions of Lumber
580
Wood's structural properties derive from fibers aligned along the tree's length, contributing significantly to its mechanical strength. Wood exhibits up to twenty times greater tensile strength along these fibers compared to across them, and generally shows better performance under compression than tension. The length of fibers varies, with hardwoods having fibers around one twenty-fifth inch long and softwoods ranging from one-eighth to one-third inch.
The strength characteristics of...
The strength characteristics of...
580
Fiber Reinforced Concrete
645
Fiber-reinforced concrete significantly enhances the structural and nonstructural properties of traditional concrete by incorporating fibers like steel, glass, and polymers. These fibers, varying from natural ones such as sisal and cellulose to manufactured ones like polypropylene and Kevlar, are mixed into hydraulic cement with aggregates. Steel fibers, often preferred for their robustness, contribute to improved ductility, toughness, and post-cracking performance. The concrete is classified...
645
Survival Tree
514
Survival trees are a non-parametric method used in survival analysis to model the relationship between a set of covariates and the time until an event of interest occurs, often referred to as the "time-to-event" or "survival time." This method is particularly useful when dealing with censored data, where the event has not occurred for some individuals by the end of the study period, or when the exact time of the event is unknown.
Building a Survival Tree
Constructing a...
Building a Survival Tree
Constructing a...
514


