不同的设计和表面处理对用复合材料修复的陶的负载到故障的影响
Mauricio Jm Tavares1, Flavia Lb Amaral1, Roberta T Basting1
1Faculdade Sao Leopoldo Mandíc, Instituto de Pesquisas Sao Leopoldo Mandic. Campinas/SP Brazil.
Acta odontologica latinoamericana : AOL
|June 26, 2024
概括
表面处理显著影响脱酸玻璃陶复合材料修复的粘合强度,HF蚀刻显示出优于喷砂的效果. 陶设计对维修保留的影响要小于表面准备.
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
- 恢复性牙科 恢复性牙科
背景情况:
- 玻璃陶修复,包括贴面,内嵌,内嵌和皇冠,因其美学而广泛使用.
- 虽然临床生存率有利,但骨折和芯片需要修复,通常是直接使用复合材料.
- 了解影响这些修复寿命的因素对于临床成功至关重要.
研究的目的:
- 评估不同表面设计和处理对用纳米填充复合材料修复的脱酸玻璃陶负载到故障的综合影响.
- 为了比较酸 (HF) 蚀刻与氧化 (Al2O3) 喷砂作为表面处理的有效性.
- 为了确定陶表面拓对修复强度的影响.
主要方法:
- 具有平面,单平面或双平面设计的二氧化玻璃陶板没有经过任何处理,5%的HF蚀刻或Al2O3喷砂.
- 在使用纳米填充复合材料进行增量修复之前,经过处理的表面接受了silane和通用粘合剂的应用.
- 经过人工唾液储存和热循环后,修复的标本经过了拉力测试,以确定负载到故障和故障模式.
主要成果:
- 与经过处理的标本相比,表面处理的缺失显著降低了负载到故障值.
- 在单层和双层平原设计中,HF蚀刻的负载到故障值明显高于喷砂.
- 与喷砂相比,SEM分析显示HF蚀刻的表面比喷砂更光滑.
结论:
- 表面处理在保留脱酸玻璃陶复合材料维修方面比宏观设计更为关键.
- 与喷砂相比,HF蚀刻似乎为复合材料的维修提供了优越的粘合强度.
- 优化表面准备对于破碎的玻璃陶修复的耐用和成功的椅子侧修复至关重要.
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