混合方法是否会影响AH Plus Jet的物理化学和机械性能?
Stefani Jovedi Rosa1, Marco Antonio Hungaro Duarte1, Emmanuel João Nogueira Leal Silva2
1Department of Operative Dentistry, Endodontics, and Dental Materials, Bauru School of Dentistry, University of São Paulo - USP, Bauru, Brazil.
Journal of endodontics
|June 20, 2024
概括
混合方法的AH Plus喷气密封剂显著影响其设置时间,流量,多孔性和结合强度. 手动混合通常与自动混合相比,产生更好的机械性能.
科学领域:
- 牙科材料科学 牙科材料科学
- 牙周内科医院 牙周内科医院 牙周内科医院
- 生物材料工程 生物材料工程
背景情况:
- AH Plus喷气密封剂是一种常用的根管填充材料.
- 混合的方法可以影响牙科密封剂的性能和临床性能.
- 了解这些影响对于优化内牙治疗结果至关重要.
研究的目的:
- 调查混合方法 (自动混合提示与手动混合) 对AH Plus喷气密封器的物理化学和机械性能的影响.
- 为了比较辐射透明度,设置时间,流量,溶解度,pH值,键强度,多孔性和表面形态.
- 确定混合技术是否会影响材料适用于内牙应用的适用性.
主要方法:
- AH Plus喷气密封剂使用自动混合提示或手动技术进行混合.
- 评估的属性包括根据ISO 6876/2012和ADA No 57/2000的辐射透明度,定时间,流量,可溶性和pH值.
- 机械测试包括推出键强度,孔隙性分析 (微CT) 和表面形态 (SEM).
主要成果:
- 与自动混合相比,手动混合导致设置时间显著缩短,流量更高.
- 手动混合证明了优越的推出键强度和较低的孔隙性.
- 对于手动混合,SEM显示了更光滑的表面,较少的聚合物,而自动混合显示了更高的多孔性.
结论:
- 混合方法显著影响AH Plus喷气密封剂的关键物理化学和机械性能.
- 手动混合似乎会产生一种材料,具有更有利的机械特性,可用于牙周内科.
- 临床医生应考虑混合方法对密封器性能的影响.
更多相关视频
13:05Reliable Mechanochemistry: Protocols for Reproducible Outcomes of Neat and Liquid Assisted Ball-mill Grinding Experiments
Published on: January 23, 2018
10.6K
09:03Bioprinting of Cartilage and Skin Tissue Analogs Utilizing a Novel Passive Mixing Unit Technique for Bioink Precellularization
Published on: January 3, 2018
13.6K
相关概念视频
01:28Factors Influencing Drug Absorption: Pharmaceutical Parameters
129
Solid dosage forms such as tablets and capsules undergo rigorous manufacturing processes to ensure stability and effectiveness. Their dissolution and absorption properties are influenced significantly by the choice of excipients (inactive ingredients that serve various roles in the formulation), and the methodology applied during production. The manufacturing parameters, such as compression force and granulation techniques, significantly affect dissolution rates. Elevated compression forces...
129
01:19Mixing Time
159
The concept of mixing time is significant in producing a uniform concrete mix with the required strength. The mixing period starts once all components are in the mixer. Initially, the mixer is charged with 10% of the water, followed by the consistent addition of solids and then 80% of the water. The remaining water is added later, within the first quarter of the mixing period. The minimum mixing time varies according to the mixer's capacity; for example, mixers with up to 1 cubic yard...
159
01:31Plasticizers
75
Water-reducers, or plasticizers, are chemical admixtures used in concrete to improve strength and workability. These additives reduce the water-cement ratio without compromising workability, lower the cement content while maintaining the same workability, or increase workability to assist concrete placement in inaccessible areas.
Plasticizers function by using surface-active agents to create repulsive electrostatic forces between cement particles. This dispersion enhances the concrete's...
Plasticizers function by using surface-active agents to create repulsive electrostatic forces between cement particles. This dispersion enhances the concrete's...
75