功能性单体类型确定了与牙结合的实验性自粘复合材料的界面特性
The journal of adhesive dentistry
|November 27, 2025
概括
功能性单体类型显著影响自粘可流动树脂复合材料 (SAFRCs) 与牙的粘合. 与GPDM和HEMA相比,10-MDP单体表现出优越的界面特性和粘合质量,提高了临床疗效.
科学领域:
- 牙科材料科学 牙科材料科学
- 聚合物化学 聚合物化学
- 生物材料工程 生物材料工程
背景情况:
- 自粘可流动树脂复合材料 (SAFRCs) 是先进的牙科修复材料.
- 优化它们的界面特性和转化度 (DC%) 对于临床成功至关重要.
- 了解配方变量的影响,如功能单体类型和粉末与液体的比率是必不可少的.
研究的目的:
- 评估功能单体类型和粉末与液体比如何影响与牙结合的实验SAFRC的界面特性.
- 为了评估不同SAFRC配方的牙接口的转化程度 (DC%).
- 为了确定最佳的组合,以提高粘合性能.
主要方法:
- 创建了9种实验性SAFRC配方,不同的粉末与液体比率 (1.9,2.2,2.5) 和功能性单体 (10-MDP,GPDM,HEMA).
- 人的牙 (n=27) 被恢复,并分析了粘度 (风力计),间扩散区 (IDZ) 宽度 (拉曼光谱) 和接口DC%的样本.
- 统计分析采用双向ANOVA和后期试验 (α=0.05).
主要成果:
- 所有复合材料都表现出非牛顿流;粘度受到粉末与液体比率和单体类型的显著影响.
- 与GPDM和HEMA相比,基于10-MDP的复合材料显示出最佳的,明显较低的粘度.
- 10-MDP配方创造了一个独特的,更广泛的IDZ,具有混合特征,与GPDM和HEMA不同,它们显示了突然的过渡或差距.
- 对10-MDP和HEMA来说,接口上的DC%超过68%,而GPDM显示较低的值.
结论:
- 功能性单体类型对SAFRC界面粘合性能和转换率产生重大影响.
- 在促进互扩散和粘合质量方面,10-MDP显著超过了GPDM和HEMA.
- 粉末与液体的比率主要影响粘度,对界面性能的影响有限.
- 优化了含有10-MDP的SAFRC配方,有望提高临床疗效和结合可预测性.
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