相关实验视频

Updated: May 5, 2026

Confocal Time Lapse Imaging as an Efficient Method for the Cytocompatibility Evaluation of Dental Composites

Confocal Time Lapse Imaging as an Efficient Method for the Cytocompatibility Evaluation of Dental Composites

Published on: November 9, 2014

甲基醇对蚀刻牙的界面和机械作用:一个体外研究

Wafa Alzubaidi¹, Bowen Wang², Mina Vaez¹

¹Faculty of Dentistry, University of Toronto, Toronto, ON, Canada.

Journal of dentistry

|March 5, 2026

概括

甲基醇 (MGO) 预处理加强了非矿化牙原,增强了对酶分解的抵抗力. 这提高了树脂-牙键的长期稳定性,这对于牙修复的寿命至关重要.

科学领域:

生物材料科学生物材料科学
牙科材料牙科材料
生物化学生物化学

背景情况:

脱矿牙易受酶降解,危及粘合剂修复的完整性.
牙基质中的原蛋白是蛋白质分解酶的主要点.
改善牙基质的内在稳定性对于持久的牙结合至关重要.

研究的目的:

评估甲基酸盐 (MGO) 预处理在增强非矿物化牙中的有效性.
评估MGO对牙抗酶降解能力的影响.
为了确定MGO预处理对在酶挑战下树脂-丁丁键的稳定性的影响.

主要方法:

无矿化牙样本被用不同度的MGO (0.5,1和3M) 处理.
鉴定包括FTIR光谱,原酶降解试验和明显弹性模量测量.
树脂-牙样本使用蚀刻和冲洗粘合剂制造,并在24小时和30天的酶老化后测试微拉伸键强度 (μTBS).

主要成果:

MGO治疗,特别是3M治疗,增加了原糖化,并显著增强了牙表面弹性模量.
酶降解耐药性以度依赖的方式增加,MGO处理的牙显示出长时间的耐药性.
虽然直接的μTBS不受影响,但MGO预处理与对照组相比,在30天的酶老化后显著保留了键强度.

结论:

MGO预处理有效地增强了非矿物化的牙原蛋白,增加了对酶降解的抵抗力.
这种方法可以提高牙基质的耐用性,而不会影响即时的结合强度.
通过MGO控制牙原蛋白的糖化提供了一种有前途的策略,以提高粘合性牙修复的寿命.

关键词:

在ATR-FTIR中使用.原蛋白的交叉连接牙内原蛋白是牙内原蛋白的一种.酶性降解酶性降解甲基格里奥克萨尔 (Methylglyoxal) 是一种弹性模块的弹性模块.

更多相关视频

Accessing the Cytotoxicity and Cell Response to Biomaterials

Accessing the Cytotoxicity and Cell Response to Biomaterials

Published on: July 8, 2021

Roughness Impact of Piezoelectric Dental Scaler on Two Distinct Flowable Composite Filling Materials

Roughness Impact of Piezoelectric Dental Scaler on Two Distinct Flowable Composite Filling Materials

Published on: January 10, 2025

相关概念视频

Local Anesthetics: Chemistry and Structure-Activity Relationship

Local Anesthetics: Chemistry and Structure-Activity Relationship

Local anesthetics (LAs) are drugs that induce a temporary loss of sensation in a limited body area, preventing pain. Cocaine was the first local anesthetic discovered in the late 19th century. Cocaine is a benzoic acid ester obtained from the leaves of coca shrubs and was often used for its psychotropic effects. Cocaine was first isolated in 1860 by Albert Niemann. Sigmund Freud studied the physiological actions of cocaine. Carl Koller later introduced it into clinical practice in 1884 as a...

Microcracking in Concrete

Microcracking in Concrete

Microcracking in concrete refers to the tiny cracks that can form within the material even before any external load is applied. These microcracks typically occur at the interface between the coarse aggregate and the hydrated cement paste, often as a result of differential volume changes prompted by variations in stress-strain behavior, as well as thermal and moisture movement. Initially, these microcracks remain stable and do not grow substantially until the concrete is stressed to about 30...