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不同饮料对PEEK和PEKK聚合物的表面特征的影响

Nuron Yanikoğlu¹, Nihan Kaya², Büşra Tosun³

¹Department of Prosthodontics, Faculty of Dentistry, Atatürk University, Erzurum, Turkey.

American journal of dentistry

|January 8, 2025

概括

红酒和咖啡等酸性饮料对PEEK和PEKK聚合物的表面性能产生负面影响,降低微硬度,增加粗度. 蒸水对这些牙科材料没有显著影响.

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
聚合物科学聚合物科学

背景情况:

聚乙基 (PEEK) 和聚乙基 (PEKK) 是先进的聚合物,越来越多地用于牙科假体.
了解它们在口腔环境中的长期稳定性对于临床成功至关重要.

研究的目的:

评估常见饮料对PEEK和PEKK表面微硬度和粗度的影响.
为了确定酸性耗材对这些高性能聚合物的降解效应.

主要方法:

皮克和皮克的标本被浸入红酒,咖啡和蒸水中,在37°C的温度下浸入了28天.
使用维克斯测试仪测量了表面微硬度,并通过剖面测量评估了粗度.
统计分析包括科尔莫戈罗夫,克鲁斯卡尔·瓦利斯和威尔科克森签名等级测试 (P<0.05).

主要成果:

酸性饮料显著降低了PEEK和PEKK聚合物的微硬度.
在接触酸性饮料后,PEEK和PEKK的表面粗度增加,但蒸水没有.
这些发现表明这些聚合物易受常见的食剂的化学降解.

结论:

由于暴露在酸性饮料中,PEEK和PEKK聚合物的化学降解可能会发生,改变假牙框架表面特性.
可拆卸部分假牙中的PEEK和PEKK的长期临床性能和耐用性仍然不确定.
需要进一步的研究才能充分理解饮料相互作用对这些牙科生物材料的影响.

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