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钛及其合金具有比重小、弹性模量与人体骨组织较匹配以及优良的耐腐蚀性和生物相容性等优点,是目前应用最为广泛的生物医用金属材料,常用作人工骨、人工关节、种植牙、种矫形组件等。但相对人体组织而言,钛植入体仍然是外体材料,不能完全为人体接受,其生物惰性、金属离子的释放和磨粒的形成,都会影响到植入体的正常使用
Titanium and its alloys have the advantages of small specific gravity, relatively elastic modulus and human bone tissue as well as excellent corrosion resistance and biocompatibility. It is the most widely used biomedical metal material, commonly used as artificial bone, artificial joints, Dental implant, orthopedic components. However, relative to human tissues, titanium implants are still exoskeleton materials that can not be fully accepted by the human body. Their bio-inertness, the release of metal ions and the formation of abrasive particles all affect the normal use of implants