临时凝固对粘合性结合的树脂基复合材料皇冠稳定性的影响
Michael B Schmidt1, Angelika Rauch2, Laura Haas2
1Department of Prosthetic Dentistry, UKR University Hospital Regensburg, Regensburg, Germany, Michael3.Schmidt@klinik.uni-regensburg.de.
American journal of dentistry
|August 26, 2024
概括
临时凝固不会影响基于树脂的复合材料皇冠的长期耐用性或抗破损性. 粘合剂和自粘合剂系统均可用于临时凝固后的最终粘合,确保可靠的体外性能.
科学领域:
- 牙科材料科学 牙科材料科学
- 牙修复 牙修复 牙修复 牙修复 牙修复
- 生物材料工程 生物材料工程
背景情况:
- 基于树脂的复合皇冠广泛用于修复性牙科.
- 临时凝固是最终冠状安置之前的常见临床步骤.
- 了解临时水泥对最终恢复完整性的影响至关重要.
研究的目的:
- 评估临时凝固方法对基于树脂的复合皇冠的耐用性和断裂强度的影响.
- 评估在临时去除水泥后不同剂的影响.
- 在体外环境中模拟长期临床衰老和机械负荷.
主要方法:
- 使用氧化-尤根醇或无尤根醇氧化水泥临时结磨砂树脂基复合材料冠.
- 皇冠通过热循环和机械负荷 (TCML) 进行了模拟的临床应用.
- 在临时拆除水泥后,皇冠使用蚀刻和冲洗或自粘系统永久粘合,并接受第二个更严格的TCML阶段.
主要成果:
- 所有测试的皇冠,无论临时凝固类型,都经历了广泛的体外老化模拟,没有失败.
- 在TCML后的组之间没有观察到骨折力量的显著差异.
- 暂时凝固或最终结合系统的类型与断裂力或故障模式之间没有发现相关性.
结论:
- 临时凝固不会对基于树脂的复合皇冠的体外性能或断裂强度产生不利影响.
- 基于树脂的皇冠可以通过粘合剂或自粘合剂系统可靠地粘合,即使经过一段暂时凝固.
- 这些发现支持临时水泥的临床使用,随后是基于树脂的皇冠的最终粘合.
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