长期人工后,在二氧化冠和结合基之间各种结剂的结合强度
Aimen Bagegni1,2, Justus Borchers1, Samuel Beisel3
1Department of Prosthetic Dentistry, Center for Dental Medicine, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetter Street 55, 79106 Freiburg, Germany.
Materials (Basel, Switzerland)
|December 9, 2023
概括
这项研究评估了用于将二氧化冠与植入物支柱结合的化剂. Panavia SA Cement Universal提供了最强的保留,表明大多数测试的药物适合持久的牙修复.
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
- 牙修复 牙修复 牙修复 牙修复 牙修复
背景情况:
- 混合支柱冠在口腔植入物康复中提供了美学和生物上的优势.
- 氧化冠与基的口外结合是一种关键技术.
研究的目的:
- 评估各种剂对基底部粘合的二氧化皇冠的保留和耐久性的影响.
- 为了在模拟的临床条件下比较七种不同的发光剂的性能.
主要方法:
- 56个带有二氧化冠的植入物支柱样本被根据剂分为七组.
- 标本经历了大量的热力学负荷,模拟了数百万次的周期和温度波动.
- 皇冠保留量化使用拉开力测试来确定解锁阻力.
主要成果:
- 大多数样本 (55/56) 经受了热力学负荷.
- Panavia SA Cement Universal (第二组) 的平均拉开力最高 (762 N),而Ketac CEM (第6组) 的平均拉开力最低 (55 N).
- 群体之间观察到统计学上显著的差异 (p < 0.001),主要是在二氧化-剂接口的粘合器失效.
结论:
- 大多数测试的化剂显示出足够的保留强度 (超过159N) 来将二氧化冠结合到基上.
- 化剂的选择显著影响了植入物支的假肢超结构的长期稳定性和保留.
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