自蚀刻原料或酸:对基于白石的玻璃陶材料的结合强度稳定性的影响
The journal of adhesive dentistry
|June 11, 2025
概括
与传统的化酸蚀刻相比,自蚀刻原料为石基玻璃陶和树脂水泥提供了优越的长期结合强度稳定性. 这种新的方法通过随着时间的推移保持债券完整性来确保持久的恢复.
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:
- 在白石基玻璃陶和树脂水泥之间实现持久的纽带对于长期的牙科修复成功至关重要.
- 传统的表面处理方法,如酸 (HF) 蚀刻,然后应用,已被用于增强粘合力.
- 在具有挑战性的口腔条件下,这些键的长期稳定性仍然是一个重要的临床问题.
研究的目的:
- 为了比较自蚀刻原料 (MEP) 与传统的酸 (HF) 蚀刻用西兰的长期结合强度稳定性.
- 为了评估经过老化协议后,基于白石的玻璃陶 (IPS Empress CAD) 和树脂水泥之间的粘合耐用性.
主要方法:
- 基于白石的玻璃陶标本被HF/西兰或自我蚀刻原料 (MEP) 处理.
- 应用了树脂水泥,在基线时测试了微剪断结合强度 (μSBS),在10,000个热循环后,在180天的浸水后.
- 通过扫描电子显微镜 (SEM) 分析了故障模式,接触角度和表面形态.
主要成果:
- 自蚀刻原料 (MEP) 组的结合强度明显高于HF处理组.
- 经MEP处理的标本在所有老化条件下保持稳定的键强度,与HF处理的标本不同,该标本的强度下降.
- 高频蚀刻导致了更多的表面不规则和老化后主要的粘合剂故障,而MEP显示出更好的稳定性.
结论:
- 自蚀刻原料 (MEP) 与传统的HF蚀刻和基于白石的玻璃陶的西兰处理相比,提供了优越的长期结合强度稳定性.
- MEP为树脂水泥粘合提供了更可靠和更耐用的粘合接口,可能会导致牙科修复中改善临床结果.
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