Hanawa Takao
Department of Metallic Biomaterials, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-surugadai, Chiyoda-ku, Tokyo, 101-0062, Japan.
Sci Technol Adv Mater. 2012 Dec 13;13(6):064102. doi: 10.1088/1468-6996/13/6/064102. eCollection 2012 Dec.
The current research and development of metallic materials used for medicine and dentistry is reviewed. First, the general properties required of metals used in medical devices are summarized, followed by the needs for the development of + type Ti alloys with large elongation and type Ti alloys with a low Young's modulus. In addition, nickel-free Ni-Ti alloys and austenitic stainless steels are described. As new topics, we review metals that are bioabsorbable and compatible with magnetic resonance imaging. Surface treatment and modification techniques to improve biofunctions and biocompatibility are categorized, and the related problems are presented at the end of this review. The metal surface may be biofunctionalized by various techniques, such as dry and wet processes. These techniques make it possible to apply metals to scaffolds in tissue engineering.
本文综述了用于医学和牙科的金属材料的当前研发情况。首先,总结了医疗设备中使用的金属所需的一般性能,接着介绍了开发具有大伸长率的 + 型钛合金和低杨氏模量的 型钛合金的需求。此外,还描述了无镍镍钛合金和奥氏体不锈钢。作为新的主题,我们回顾了可生物吸收且与磁共振成像兼容的金属。对改善生物功能和生物相容性的表面处理和改性技术进行了分类,并在本综述末尾提出了相关问题。金属表面可通过各种技术进行生物功能化,如干法和湿法工艺。这些技术使金属能够应用于组织工程支架。