丹丁结合接口的稳定性使用自蚀刻粘合剂含有甲胺在细菌挑战后
Fernanda M Tsuzuki1,2, Matthew G Logan1, Steven H Lewis1
1Biomaterial and Biomedical Sciences Division, School of Dentistry, Oregon Health & Science University, 2730 S Moody Ave, Portland, Oregon 97201, United States.
ACS applied materials & interfaces
|August 23, 2024
概括
新的自蚀刻原料与烯胺改善了细菌挑战后的牙粘合强度. 这些材料为粘接接口提供了增强的稳定性,这对于长期的牙科修复至关重要.
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
- 粘合式牙科 粘合式牙科
背景情况:
- 烯胺在低pH下表现出水解稳定性,保持牙粘合剂中粘合界面的完整性.
- 含有10-MDP (10-methacryloyloxyloxydecyl dihydrogen phosphate) 的自我蚀刻原料对于现代牙粘接至关重要.
研究的目的:
- 为了评估含有10-MDP和二烯胺 (DEBAAP或HEMA) 的自蚀刻原料的微拉伸键强度.
- 为了评估与Streptococcus mutans生物膜化后的结合强度,以模拟口腔条件.
主要方法:
- 配制具有不同组成的酸性原料和粘合剂 (10-MDP,DEBAAP,HEMA).
- 材料性质的表征,包括屈曲强度,模量,性,吸水/溶解性和粘度.
- 在细菌介质中储存之前和之后,对人类牙进行微拉伸键强度 (MTBS) 的测试.
主要成果:
- 与DEBAAP相比,基于HEMA的材料在储水后显示出更高的水吸附和更大的强度降解.
- 基于DEBAAP的材料表现出更大的性,但在储水后性也更显著下降.
- 经过细菌挑战后,DEBAAP/HEMA的原料/粘合剂组合 (DH) 显示出最高的MTBS,表现优于对照组.
结论:
- 将二烯胺 (DEBAAP) 纳入自蚀刻粘合剂系统可以提高粘合稳定性,特别是在细菌挑战下.
- 在原料和粘合剂中,DEBAAP与HEMA的组合为持久的牙科修复提供了有希望的结果.
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