作为人类牙替代品的牛牙:在声音和被侵蚀的基板上进行结合强度测试
Ramona Oltramare1, Caroline A Lutz Guzman2, Julia J Lotz3
1Clinic of Conservative and Preventive Dentistry, Center for Dental Medicine, University of Zurich, 8032 Zurich, Switzerland.
Dentistry journal
|January 27, 2026
概括
蚀刻和冲洗粘合剂在侵蚀的牙上具有较低的粘合强度,使得牛牙成为人类牙的不可靠替代品. 然而,自蚀刻粘合剂在人类牙和牛牙上表现出类似的结合强度,这表明牛牙可以作为替代品.
科学领域:
- 牙科材料科学 牙科材料科学
- 粘合式牙科 粘合式牙科
- 生物材料研究 生物材料研究
背景情况:
- 牙侵蚀可能会损害牙的完整性,影响粘合键强度.
- 评估不同粘合剂系统在声音和被侵蚀的牙上的微拉伸键强度 (μTBS) 对临床成功至关重要.
- 牛牙在研究中经常被用作人类牙的替代品,但它的适用性需要验证.
研究的目的:
- 为了比较蚀刻和冲洗 (ER) 和自蚀刻 (SE) 粘合剂在健全和被侵蚀的人类和牛牙上的微拉伸强度 (μTBS).
- 在使用不同粘合系统的μTBS研究中,评估牛牙作为人类牙替代物的可靠性.
主要方法:
- 人类和牛的牙使用酸受到侵蚀挑战.
- 样品被处理成一个蚀刻和冲洗 (OptiBond FL) 或一个自蚀刻 (OptiBond All-in-One) 粘合剂.
- 在储存七天后测量了微拉伸性键强度 (μTBS),并分析了故障类型.
主要成果:
- 与侵蚀的人类牙和所有牛牙群体相比,蚀刻和冲洗粘合剂在健康的人类牙上表现出显著更高的μTBS.
- 在使用自蚀刻粘合剂时,在声音和被侵蚀的人类和牛牙之间没有观察到μTBS的显著差异.
- 这种自蚀刻粘合剂在健全和被侵蚀的人类和牛牙上都显示出可比的μTBS.
结论:
- 在使用蚀刻和冲洗粘合剂时,牛牙不是人类牙的可靠替代品,特别是在被侵蚀的表面上.
- 牛牙可以被认为是人类牙的合适替代品,当使用特定的自蚀刻粘合剂测试时,由于可比的μTBS.
- 这些发现强调了选择适当的牙基质和粘合系统对于可靠的体外粘合强度评估的重要性.
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