在热水老化后,材料和根三分之一对玻璃纤维柱的结合强度的影响
Suellen Tayenne Pedrosa Pinto1, Carlos Rangel de Moura Oliveira2, Mário Tanomaru-Filho1
1Department of Dental Materials and Prosthodontics, School of Dentistry, Sao Paulo State University - UNESP, Araraquara, SP, Brazil.
PloS one
|January 23, 2026
概括
玻璃纤维后留存取决于光材料和根部位置. 帕纳维亚V5 (PV5) 和RelyX Ultimate (RXU) 显示出对牙的优越结合强度,特别是在具有挑战性的根部区域,确保了长期的恢复成功.
科学领域:
- 牙科材料科学 牙科材料科学
- 恢复性牙科 恢复性牙科
- 生物材料工程 生物材料工程
背景情况:
- 广泛的牙破坏需要可靠的修复解决方案.
- 玻璃纤维柱为保留修复提供了一个可行的选择.
- 后保留严重依赖于与牙的结合强度,这种强度随根三分之一而变化.
研究的目的:
- 为了评估不同的光材料如何影响玻璃纤维对根性牙的后结合强度.
- 为了评估根三分之一对水热老化后这种键强度的影响.
主要方法:
- 用七种材料 (Panavia V5,Rebilda DC,LuxaCore Z,Allcem Core,RelyX Ultimate,RelyX U200,Fuji Plus) 进行了七十个牛切口.
- 根经历了10,000次热循环 (5-55°C),并被切成部,中部和顶部的三分之一.
- 测量了推出键的强度,并分析了故障模式.
主要成果:
- 债券强度在Panavia V5,Allcem Core,RelyX Ultimate和RelyX U200的根三分之一之间有显著的变化.
- 帕纳维亚V5和RelyX Ultimate表现出总体债券强度最高的情况.
- 与其他材料相比,Panavia V5和RelyX Ultimate在根三分之一提供了更一致的粘附力.
结论:
- 接材料的选择显著影响玻璃纤维对内牙膜的后结合强度.
- 带有自蚀刻粘合剂的双固化树脂水泥 (例如,Panavia V5,RelyX Ultimate) 提供可预测的附着性,即使在复杂的根部区域.
- 识别优质的化材料有助于临床决策,以提高治疗寿命.
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