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回收选择性激光化合金粉在,和陶的结合强度上

Haydar Albayrak¹, Mustafa Ayata², Bilal Demirel³

¹Assistant Professor, Department of Prosthodontics, Faculty of Dentistry, Erciyes University, Kayseri, Turkey.

The Journal of prosthetic dentistry

|September 17, 2023

概括

在选择性激光炼中,回收的合金粉末不会影响金属陶键强度. 然而,粘合剂的选择显著影响牙框架的粘合强度.

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
牙科技术牙科技术

背景情况:

选择性激光化 (SLM) 允许在牙科实验室中经济高效地重复使用合金粉末.
关于回收式SLM粉末对牙框架金属陶结合强度的影响的数据有限.

研究的目的:

评估重复合金粉重复使用和粘合剂类型对SLM制造的CoCr框架的金属陶粘合强度的影响.
为了比较使用处女材料制成的框架与30次重复使用的CoCr粉末的结合强度.

主要方法:

CoCr框架是使用原始和30次重复使用的SLM粉末制造的.
框架根据两个绑定剂 (Wash Opaque和NP-Bond) 分为子组.
用三点曲试验评估金属陶粘合强度;分析了粉末和粘合剂组成.

主要成果:

处女和重复使用的CoCr粉末组之间没有观察到键强度的显著差异.
使用Wash Opaque结合剂的框架与使用NP-Bond的框架相比,具有显著更高的结合强度.
粉末相组合保持一致;洗不透明的粘合剂含有,与NP-Bond不同.

结论:

在SLM中重复使用合金粉不会损害CoCr牙框架的金属陶粘合强度.
粘合剂的选择是影响SLM制造的CoCr框架的粘合强度的关键因素.

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