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首页> 外文期刊>Acta biomaterialia >Pore distribution and material properties of bone cement cured at different temperatures.
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Pore distribution and material properties of bone cement cured at different temperatures.

机译：在不同温度下固化的骨水泥的孔分布和材料性能。

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摘要

Implant heating has been advocated as a means to alter the porosity of the bone cement/implant interface; however, little is known about the influence on cement properties. This study investigates the mechanical properties and pore distribution of 10 commercially available cements cured in molds at 20, 37, 40 and 50 degrees Celsius. Although each cement reacted differently to the curing environments, the most prevalent trend was increased mechanical properties when cured at 50 degrees Celsius vs. room temperature. Pores were shown to gather near the surface of cooler molds and near the center in warmer molds for all cement brands. Pore size was also influenced. Small pores were more often present in cements cured at cooler temperatures, with higher-temperature molds producing more large pores. The mechanical properties of all cements were above the minimum regulatory standards. This work shows the influence of curing temperature on cement properties and porosity characteristics, and supports the practice of heating cemented implants to influence interfacial porosity.
机译：种植体加热已被提倡为改变骨水泥/种植体界面孔隙率的一种方法。然而，对水泥性能的影响知之甚少。这项研究调查了在20、37、40和50摄氏度下在模具中固化的10种市售水泥的机械​​性能和孔分布。尽管每种水泥对固化环境的反应不同，但最常见的趋势是在50摄氏度（相对于室温）下固化时机械性能提高。结果表明，所有水泥品牌的毛孔都聚集在较冷的模具表面附近和较热的模具中心附近。孔径也受到影响。在较低温度下固化的水泥中通常会出现小孔，而高温模具会产生更大的孔。所有水泥的机械​​性能均高于最低法规标准。这项工作显示了固化温度对水泥性能和孔隙率特性的影响，并支持加热水泥植入物以影响界面孔隙率的实践。

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