开发出生物相容的以异化物为基础的聚氨,表现出欧卡利普托尔溶解度,用于先进的根运河填充应用
Yuen-Shan Tsai1, Sheng-Wun Huang2,3, Yin-Lin Wang2,3
1Graduate Institute of Oral Biology, School of Dentistry, National Taiwan University, Taipei, Taiwan.
Journal of dental sciences
|January 26, 2026
概括
生物基的D-异 sor 化物热塑性聚氨提供了改进的可移除性和细胞兼容性作为根管填充材料. 这些新材料显示出作为古塔珀卡可持续替代品的潜力,提高临床性能和患者安全.
科学领域:
- 生物材料科学 生物材料科学
- 聚合物化学 聚合物化学
- 牙科材料 牙科材料
背景情况:
- 谷 (Gutta-percha,GP) 是标准的根运河填充材料,但有其局限性,包括移动性差,机械软弱和细胞毒性.
- 这些缺陷限制了GP的临床疗效,并迫使开发先进的替代品.
研究的目的:
- 开发新型的D-异化物热塑性聚氨 (IPU) 作为潜在的根管填充材料.
- 与GP.相比,提高菜油的可移除性,改善机械性质,增加细胞相容性.
主要方法:
- 通过无催化剂的两步聚合合成基于D-异化物的IPU.
- 评估了四种IPU配方 (HS10-HS40) 的热稳定性,机械性质 (抗拉强度,破裂时延长),溶解性在树脂中和细胞相容性.
- 使用热重力测量分析,差分扫描热量测量,拉伸测试,CCK-8和LDH测试,比较IPU对gutta-percha的性能.
主要成果:
- 所有合成的IPU都表现出高热稳定性 (T5d>270°C) 和合适的化过渡 (44-48°C).
- IPU-30表现出优异的机械性能,其拉伸强度为11.8 ± 1.0 MPa,破裂时的延长率为721 ± 144%,性能优于GP.
- IPU在白油中溶解度增加 (IPU-40的质量损失高达13%) 和细胞兼容性改善,IPU-30在6天内表现出比GP更低的细胞毒性和更高的细胞活力.
结论:
- 基于D-二氧化的IPU具有有利的热和机械特性,加上在白醇中部分溶解性,以方便再处理.
- 这些IPU的增强细胞兼容性支持它们作为根管堵塞的古塔-珀卡可持续和临床有效替代品的潜力.
相关概念视频
Factors Affecting Solubility
36.7K
Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Chȃtelier’s principle. Consider the dissolution of silver iodide:
36.7K
Solubility Equilibria
57.0K
Solubility equilibria are established when the dissolution and precipitation of a solute species occur at equal rates. These equilibria underlie many natural and technological processes, ranging from tooth decay to water purification. An understanding of the factors affecting compound solubility is, therefore, essential to the effective management of these processes. This section applies previously introduced equilibrium concepts and tools to systems involving dissolution and precipitation.
The...
The...
57.0K
Physical Properties Affecting Solubility
26.3K
Solutions of Gases in Liquids
As for any solution, the solubility of a gas in a liquid is affected by the attractive intermolecular forces between solute and solvent species. Unlike solid and liquid solutes, however, there is no solute-solute intermolecular attraction to overcome when a gaseous solute dissolves in a liquid solvent since the atoms or molecules comprising a gas are far separated and experience negligible interactions. Consequently, solute-solvent interactions are the sole...
As for any solution, the solubility of a gas in a liquid is affected by the attractive intermolecular forces between solute and solvent species. Unlike solid and liquid solutes, however, there is no solute-solute intermolecular attraction to overcome when a gaseous solute dissolves in a liquid solvent since the atoms or molecules comprising a gas are far separated and experience negligible interactions. Consequently, solute-solvent interactions are the sole...
26.3K
Solubility of Ionic Compounds
68.1K
Solubility is the measure of the maximum amount of solute that can be dissolved in a given quantity of solvent at a given temperature and pressure. Solubility is usually measured in molarity (M) or moles per liter (mol/L). A compound is termed soluble if it dissolves in water.
68.1K
Solubility
21.0K
Solution, Solubility, and Solubility Equilibrium
A solution is a homogeneous mixture composed of a solvent, the major component, and a solute, the minor component. The physical state of a solution—solid, liquid, or gas—is typically the same as that of the solvent. Solute concentrations are often described with qualitative terms such as dilute (of relatively low concentration) and concentrated (of relatively high concentration).
In a solution, the solute particles (molecules,...
A solution is a homogeneous mixture composed of a solvent, the major component, and a solute, the minor component. The physical state of a solution—solid, liquid, or gas—is typically the same as that of the solvent. Solute concentrations are often described with qualitative terms such as dilute (of relatively low concentration) and concentrated (of relatively high concentration).
In a solution, the solute particles (molecules,...
21.0K
Primary and Secondary Growth in Roots and Shoots
60.3K
Vascular plants, which account for over 90% of the Earth’s vegetation, all undergo primary growth—which lengthens roots and shoots. Many land plants, notably woody plants, also undergo secondary growth—which thickens roots and shoots.
60.3K


