...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of biomedical materials research. Part B, Applied biomaterials. >Effects of neutral sodium hydrogen phosphate on setting reaction and mechanical strength of hydroxyapatite putty.
【24h】

Effects of neutral sodium hydrogen phosphate on setting reaction and mechanical strength of hydroxyapatite putty.

机译：中性磷酸氢钠对羟基磷灰石腻子固化反应和机械强度的影响。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The setting reaction and mechanical strength in terms of diametral tensile strength (DTS) of hydroxyapatite (HAP) putty made of tetracalcium phosphate, dicalcium phosphate anhydrous, and neutral sodium hydrogen phosphate (Na1.8H1.2PO4) solution containing 8 wt % sodium alginate were evaluated as a function of the Na1.8H1.2PO4 concentration. In one condition, HAP putty was placed in an incubator kept at 37 degrees C and 100% relative humidity. In the other condition, immediately after mixing HAP putty was immersed in serum kept at 37 degrees C. Longer setting times and lower DTS values were observed when HAP putty was immersed in serum regardless of the Na1.8H1.2PO4 concentration. The setting times of the HAP putty in both conditions became shorter with an increase in the Na1. 8H1.2PO4 concentration, reaching approximately 7-13 min when the Na1. 8H1.2PO4 concentration was 0.6 mol/L or higher. The DTS value of HAP putty was relatively constant (10 MPa) regardless of the Na1.8H1. 2PO4 concentration (0.2-1.0 mol/L) when HAP putty was kept in an incubator. In contrast, when HAP putty was immersed in serum, the DTS value was dependent on the Na1.8H1.2PO4 concentration. It increased with the Na1.8H1.2PO4 concentration and reached approximately 5 MPa when the Na1.8H1.2PO4 concentration was 0.6 mol/L, after which it showed a relatively constant DTS value. We therefore would recommend a HAP putty that uses 0.6 mol/L Na1.8H1. 2PO4 since at that concentration the putty's setting time (approximately 10 min) is proper for clinical use and it shows good DTS value (approximately 5 MPa) even when it is immersed in serum immediately after mixing. Copyright 1999 John Wiley & Sons, Inc.
机译：由磷酸四钙，无水磷酸二钙和含有8 wt％海藻酸钠的中性磷酸氢钠（Na1.8H1.2PO4）制成的羟基磷灰石（HAP）油灰的径向拉伸强度（DTS）的固化反应和机械强度分别为评估Na1.8H1.2PO4浓度的函数。在一种情况下，将HAP油灰放入保持在37摄氏度和100％相对湿度的培养箱中。在另一种情况下，混合后立即将HAP油灰浸入保持在37摄氏度的血清中。将HAP油灰浸入血清中时，无论Na1.8H1.2PO4浓度如何，观察到更长的凝固时间和更低的DTS值。随着Na1含量的增加，两种情况下HAP油灰的凝结时间变得更短。 8H1.2PO4浓度，当Na1达到约7-13分钟。 8H1.2PO4浓度为0.6 mol / L或更高。 HAP油灰的DTS值相对恒定（10 MPa），与Na1.8H1无关。将HAP油灰保存在培养箱中时2PO4浓度（0.2-1.0 mol / L）。相反，将HAP油灰浸入血清中时，DTS值取决于Na1.8H1.2PO4的浓度。当Na1.8H1.2PO4浓度为0.6 mol / L时，它随Na1.8H1.2PO4浓度的增加而增加，并达到约5 MPa，此后显示出相对恒定的DTS值。因此，我们建议使用0.6 mol / L Na1.8H1的HAP油灰。 2PO4是因为在该浓度下油灰的凝固时间（约10分钟）适合临床使用，即使混合后立即浸入血清中，它也显示出良好的DTS值（约5 MPa）。版权所有1999 John Wiley＆Sons，Inc.

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号