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相关概念视频

Tooth Anatomy01:21

Tooth Anatomy

1.2K
The human tooth enables us to eat a variety of foods, speak clearly, and even aid in shaping our faces. Teeth are composed of various elements that work together. Here's a detailed look at the anatomy of a human tooth.
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or...
1.2K
Teeth01:15

Teeth

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The formation of teeth, also known as odontogenesis, is a complex process that begins in utero, around the sixth week of embryonic development. There are three stages to this process: the bud stage, the cap stage, and the bell stage.
In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin...
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相关实验视频

Updated: Oct 4, 2025

Development of Amelogenin-chitosan Hydrogel for In Vitro Enamel Regrowth with a Dense Interface
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Development of Amelogenin-chitosan Hydrogel for In Vitro Enamel Regrowth with a Dense Interface

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多尺度工程人工牙

Hewei Zhao1, Shaojia Liu1, Yan Wei2

  • 1School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100191, China.

Science (New York, N.Y.)
|February 3, 2022
PubMed
概括
此摘要是机器生成的。

研究人员创造了一种仿真牙结构的生物材料. 这种新的纳米复合材料使用涂层酸纳米线和聚乙烯醇,超越了天然质的机械性能,用于先进的材料应用.

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Micro-dissection of Enamel Organ from Mandibular Incisor of Rats Exposed to Environmental Toxicants
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Micro-dissection of Enamel Organ from Mandibular Incisor of Rats Exposed to Environmental Toxicants

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Establishing Organoids from Human Tooth as a Powerful Tool Toward Mechanistic Research and Regenerative Therapy
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相关实验视频

Last Updated: Oct 4, 2025

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Development of Amelogenin-chitosan Hydrogel for In Vitro Enamel Regrowth with a Dense Interface

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Micro-dissection of Enamel Organ from Mandibular Incisor of Rats Exposed to Environmental Toxicants
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Micro-dissection of Enamel Organ from Mandibular Incisor of Rats Exposed to Environmental Toxicants

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Establishing Organoids from Human Tooth as a Powerful Tool Toward Mechanistic Research and Regenerative Therapy
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科学领域:

  • 生物材料科学
  • 材料工程
  • 纳米技术

背景情况:

  • 牙面膜表现出极高的刚性,硬度和粘性.
  • 在合成材料中复制质的复杂层次结构是很困难的.
  • 开发可扩展的高性能仿生复合材料仍然是一个挑战.

研究的目的:

  • 设计一种由牙质层次结构所启发的新生物模拟材料.
  • 在可扩展的生物复合物中实现卓越的机械性能.
  • 研究特定结构元件在提高材料性能方面的作用.

主要方法:

  • 无形晶间相 (AIP) 涂层的酸纳米线组装.
  • 将纳米线与聚乙烯醇交织在一起以创建纳米复合材料.
  • 多级层次结构和机械性能的表征.

主要成果:

  • 这种设计的纳米复合材料具有很高的刚性,硬度,强度,粘性和性.
  • 实现的机械性能超过了天然牙质.
  • 性能优于之前开发的散装质材料.
  • 确定无形的颗粒间阶段,聚合物封闭和强的界面粘附对于高性能至关重要.

结论:

  • 开发了一种可扩展的生产高性能仿生材料的方法.
  • 这种多层次的设计成功地复制了牙质的关键特征.
  • 这种工程材料为需要卓越机械性能的应用提供了有希望的替代品.