对用于根管道堵塞的光固化水凝的评估
S Bhandari1, S Kuehne2, J Camilleri1
1Dentistry, School of Health Sciences, College of Medicine and Health, University of Birmingham, Birmingham, UK.
Journal of dental research
|December 14, 2024
概括
一种新的光可治愈的根管填充材料,OdneFill,显示了与现有的密封剂相比较的物理特性,并增强了对多种生物膜的抗微生物活性,这表明它有可能用于内牙治疗.
科学领域:
- 牙周内科医院 牙周内科医院 牙周内科医院
- 牙科材料科学 牙科材料科学
背景情况:
- 根通道堵塞的目的是消除残留的细菌,但再感染可能导致治疗失败.
- 目前使用gutta-percha和密封剂的方法需要精确的道准备.
- 一种新型的可光固化注射材料为根管填充提供了潜在的替代方案.
研究的目的:
- 描述一种新的光可治愈的注射性根管填充材料OdneFill的物理,化学和抗菌性质.
- 将OdneFill与已建立的根管密封剂 (AH Plus,BioRoot RCS) 进行比较.
主要方法:
- 用SEM,能量分散光谱学分析材料,并对流量,薄膜厚度,放射性透明度,溶解度和接触角度进行评估.
- 对多种生物膜和细菌酶 (脂酶,胆固醇化酶) 的抗微生物特性进行了评估.
- 使用活体/死体染色,共聚焦显微镜和体重变化分析量化了细菌活力和材料降解.
主要成果:
- 具有氧化填充剂的有机矩阵OdneFill显示了与AH Plus和BioRoot RCS相似的物理性能.
- 当暴露于常见的灌溶液和细菌酶时,该材料是稳定的.
- 与AH Plus相比,OdneFill对多种生物膜表现出优越的抗菌特性.
结论:
- 奥德尼菲尔为根运河堵塞提供了有利的物理和化学稳定性.
- 该材料具有增强的抗微生物疗效,使其成为内牙科应用的有希望的候选者.
- 需要进一步的临床研究来验证OdneFill在体内的性能.
相关概念视频
Quality of Water
757
In concrete preparation, the quality of water is paramount as it affects the strength and durability of the concrete. Potable water is usually preferred; however, it must not have excessive sodium or potassium to prevent compromising the concrete's integrity. Water quality is typically evaluated based on impurities such as dissolved solids, chlorides, and sulfates, and its pH value is ideally between 6 and 8. Even slightly acidic natural water may be acceptable unless it contains harmful...
757
Testing Water Quality
634
When the quality of water for concrete preparation is uncertain, its impact on the setting time of cement and compressive strength of mortar is assessed by comparison with de-ionized or distilled water benchmarks. American Society for Testing and Materials (ASTM) C1602 requires the setting times to be within 90 minutes of the control, British Standard (BS) 3146:1980 allows a 30-minute variance in the initial setting, while British Standards European Norm (BS EN) 1008 specifies initial setting...
634
Water Cement Ratio
1.8K
The water-cement ratio is pivotal in defining concrete's quality. This ratio, a balance between the weight of water and cement in the mix, shapes the concrete's strength, durability, and resistance to environmental factors. As identified by Abrams’ law, less water in the mix equates to stronger concrete. However, water is essential not only for the chemical process of hydration but also for the concrete's workability and compaction. While hydration chemically binds water and...
1.8K
Permeability of Concrete
714
Permeability in the context of concrete refers to how easily liquids or gases can pass through the material. This quality is crucial for assessing the water-tightness and durability of concrete structures and their resistance to chemical attacks. Concrete permeability can be determined through comparative laboratory tests. These tests typically involve sealing a concrete specimen from the sides, applying water pressure to the top surface with pressure, and measuring the amount of water passing...
714


