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微波能量的结晶:对基玻璃陶的生存概率的影响

Pedro Santos Diamantino¹, Camila da Silva Rodrigues¹, Ana Beatriz Gomes de Carvalho¹

¹Universidade Estadual Paulista - Unesp, Institute of Science and Technology, Department of Dental Materials and Prosthodontics, São José dos Campos, SP, Brazil.

Brazilian oral research

|January 8, 2025

概括

微波结晶为以为基础的玻璃陶提供了一个可行的替代方案,保持与传统方法相比的生存概率. 这项研究发现,微波能量适用于处理酸和脱酸材料,而不会损害其可靠性.

科学领域:

材料科学材料科学材料科学
生物材料工程生物材料工程
陶工程陶工程陶工程

背景情况:

基于的玻璃陶在牙科修复中被广泛使用.
传统的炉结晶是标准的加工方法.
探索其他更快的结晶方法,如微波加热,对于材料创新至关重要.

研究的目的:

评估通过微波炉结晶的酸盐 (LS) 和脱酸盐 (LD) 玻璃陶与常规炉的存活概率.
通过不同的结晶方法处理的LS和LD材料的可靠性和韦布尔β值进行比较.
为了确定微波结晶是否会影响这些玻璃陶的机械完整性和长期性能.

主要方法:

准备了LS (Celtra Duo) 和LD (e.max CAD) 的圆盘形样本.
样品分为微波 (M) 和常规 (C) 结晶组 (每组n=30).
进行了双轴屈曲强度测试和加速寿命 (步骤应力) 测试,随后对故障模式进行了SEM分析.

主要成果:

韦布尔的β值在不同组之间有显著差异 (LS-C: 2.65,LS-M: 0.25,LD-C: 0.62,LD-M: 0.3).
所有组在5万次循环后,在100和150MPa下表现出相似的可靠性.
在200MPa时,微波结晶并没有降低LS或LD中的可靠性,而LD在微波处理时显示出比LS更高的可靠性.

结论:

微波能量是结晶基玻璃陶的合适替代品.
微波结晶不会对LS和LD玻璃陶的生存概率和可靠性产生负面影响.
微波结晶为牙科陶提供了一个有希望的,潜在的更快的加工方法,而不会影响机械性能.

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