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相关概念视频

Bonding and Strength of Aggregate01:12

Bonding and Strength of Aggregate

216
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...
216

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相关实验视频

Updated: Jul 16, 2025

Development of Amelogenin-chitosan Hydrogel for In Vitro Enamel Regrowth with a Dense Interface
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制定一种改变的牙基质,以改善牙粘合.

Yaoxin Wang1, Zijing Chang2, Ning Ding3

  • 1Graduate student, Beijing Institute of Dental Research, School of Stomatology, Capital Medical University, Beijing, PR China.

The Journal of prosthetic dentistry
|September 20, 2023
PubMed
概括
此摘要是机器生成的。

与化 (NaF) 蚀刻剂相比,含有化 (SnF2) 的蚀刻剂显著增强牙结合和抗菌特性. 这项研究证明了SnF2.

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Application of Light-cured Dental Adhesive Resin for Mounting Electrodes or Microdialysis Probes in Chronic Experiments
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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
  • 卡里斯研究 研究 卡里斯研究

背景情况:

  • 二次性虫是导致牙修复失败的主要原因.
  • 有限的研究存在于创建耐酸和抗菌牙以增强粘合.

研究的目的:

  • 为了比较两种化物蚀刻对牙结合的影响.
  • 探索改变牙基质以改善使用化物蚀刻剂的粘合.

主要方法:

  • 配制的含有NaF和SnF2的涂料,含有35%的酸.
  • 使用SEM,EDS,FTIR,微硬度,抗侵蚀和抗菌试验评估牙.
  • 测量了微拉伸键强度 (μTBS) 和分析了断裂模式.

主要成果:

  • SnF2蚀刻剂促进了牙上的重矿化和矿物质形成.
  • 含有SnF2的S1组表现出最高的μTBS (77.5 MPa).
  • 组S2显示出优越的抗侵蚀和抗菌性能.

结论:

  • 含有SnF2的蚀刻剂可以改善牙基质,重矿化和粘合强度.
  • 与NaF蚀刻剂相比,SnF2增强了抗菌能力和抗酸侵蚀能力.