Physical Properties of Nano-HAs/ZrO2 Coating on Surface of Titanium Materials Used in Dental-implants and its Biological Compatibility

It is well known that the features of teeth in men and women can be changed with increasing age, in which some teeth could be damaged. Thus the dental-implants, which are implanted at the positions of damaged teeth to replace the latter, are developed and used widely in dentist medicine. At present, the dental-implants are, in general, manufactured by titanium materials. Clinic experiments show that the kind of dental-implants cannot be very well incorporated with the dental substrates, thus their biological functions will fail after about ten years. Therefore, it is very necessary to improve and lift the qualities of the dental-implants for enhancing the combined strength of the titanium materials with the dental substrates. The investigations show that nanomaterials, such as Hydroxyapatites (HAs), and their complexes with other nanomaterials, which are coated on the surface of titanium materials, can be used to enhance the incorporated strength with the dental substrates. Institute of Physical Electron and Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, China