相关实验视频
Updated: Jul 24, 2025

09:46
Accessing the Cytotoxicity and Cell Response to Biomaterials
Published on: July 8, 2021
3.8K
新酸水泥的生物相容性和矿化潜力
Byurira Kim1, Yong-Hyuk Lee2, Ik-Hwan Kim3
1Department of Pediatric Dentistry, College of Dentistry, Yonsei University, Seoul, Republic of Korea.
Journal of dental sciences
|July 5, 2023
概括
新的酸水泥 (CSCs),NeoMTA Plus和EndoSequence根修复材料-快速设置 (ERRM-FS),显示与ProRoot MTA相比较的生物相容性和矿化潜力,使它们成为重要的脉治疗的合适替代品.
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
- 恢复性牙科 恢复性牙科
背景情况:
- 酸水泥 (CSCs) 广泛用于重要的脉疗法.
- 许多新的CSC产品已经出现,需要对其性能进行评估.
- ProRoot MTA 作为评估新型 CSC 的基准.
研究的目的:
- 评估两个新的CSCs的生物相容性和矿化潜力:NeoMTA Plus和EndoSequence根修复材料-快速集 (ERRM-FS).
- 将这些新材料与ProRoot MTA在体外和体内环境中进行比较.
主要方法:
- 在体外:评估每个CSC的干细胞活力,性酸酶 (ALP) 活性和离子释放.
- 在体内:使用ProRoot MTA,NeoMTA Plus或ERRM-FS对36颗牙进行了部分脉冲切除.
- 组织学分析评估了牙桥形成,脉炎症和治疗后的牙质层.
主要成果:
- 这三个CSC都在体外表现出类似的干细胞活力,ALP水平和释放.
- 与NeoMTA Plus相比,ProRoot MTA和ERRM-FS在体内表现出优异的组织愈合和质屏障质量.
- 在测试材料中,在新形成的状区域中没有观察到显著的差异.
结论:
- NeoMTA Plus和ERRM-FS具有与ProRoot MTA相比的生物相容性和矿化潜力.
- 这些新型的CSC代表了临床应用的可行的替代方案,用于生命脉治疗.
相关概念视频
Hydration of Cement
290
Hydration of cement is a chemical reaction between cement particles and water. This process occurs primarily through two mechanisms: through-solution and topochemical. In the through-solution process, anhydrous compounds dissolve into their constituents, hydrates form in the solution, and then precipitate from the supersaturated solution. The topochemical process involves solid-state reactions at the cement particle surface. The through-solution process dominates the topochemical process at the...
290
Essential Minerals for Bone Health
4.2K
The minerals contained in all of the food we consume are essential for our organ systems. However, certain essential minerals, such as calcium, phosphorus, magnesium, manganese, and fluoride, largely affect bone health.
Calcium and Phosphorus
Calcium is a critical component of bones, especially in the form of calcium phosphate and calcium carbonate. Since the body cannot make calcium, it must be obtained from the diet. However, calcium cannot be absorbed from the small intestine without...
Calcium and Phosphorus
Calcium is a critical component of bones, especially in the form of calcium phosphate and calcium carbonate. Since the body cannot make calcium, it must be obtained from the diet. However, calcium cannot be absorbed from the small intestine without...
4.2K
Soundness of Cement
201
The soundness of cement refers to the ability of cement paste to retain its volume after setting. Unsound cement can lead to expansion and structural damage due to the presence of free lime, magnesia, and calcium sulfate. Free lime hydrates very slowly, expanding and causing unsoundness, which is difficult to detect because it intercrystallizes with other compounds. Magnesia also reacts with water, forming crystals that can disrupt the cement's structure. Calcium sulfate can create...
201
The Bone Matrix
3.3K
Bone contains a relatively small number of cells entrenched in a matrix of collagen fibers that provide an adherent surface for inorganic salt crystals. Both components of the matrix, organic and inorganic, contribute to the unusual properties of bone. Without collagen, bones would be brittle and shatter easily. Without mineral crystals, bones would flex and provide little support. This can be observed by an experiment: when the minerals of a bone are dissolved by soaking the bone in...
3.3K
Strength and Heat of Hydration
274
The hydration of cement is an exothermic reaction in which heat is generated as cement hydrates. This heat of hydration is critical to cement's strength development. The rate at which this heat is generated affects the temperature rise, with a majority of the heat being released early in the hydration process, half within the first three days, and about 75% within the first week.
The heat of hydration for each cement compound is significant; for instance, tricalcium aluminate (C3A) and...
The heat of hydration for each cement compound is significant; for instance, tricalcium aluminate (C3A) and...
274
Strength of Cement
170
Strength tests for cement are not performed directly on neat cement paste due to difficulty in obtaining consistent, reliable specimens. Instead, cement is typically tested in the form of cement-sand mortar.
For compressive strength tests, ASTM C 109-05 standards prescribe a cement-sand mix ratio of 1:2.75 and a water/cement ratio of 0.485 for making 2-inch cubes. These cubes are mixed, cast, and cured in saturated lime water at 23°C until testing. Flexural strength testing, outlined in...
For compressive strength tests, ASTM C 109-05 standards prescribe a cement-sand mix ratio of 1:2.75 and a water/cement ratio of 0.485 for making 2-inch cubes. These cubes are mixed, cast, and cured in saturated lime water at 23°C until testing. Flexural strength testing, outlined in...
170

