Human bone and dental implants currently used are fabricated from
Vitallium (a cobalt alloy), titanium Ti6-4 and some sintered ceramics.
While these products excellent biocompatibility and high strength
their surface finishes do not promote tissue adherence and/or
growth. Rather an adherent, coarse, porous structure is required.
Materials selected for attachment to mammalian implant should
be:
· Biocompatible with the host
· Adherent to the implant
· Sensitive to application parameters to control adhesion
and density
· Promote tissue adhesion and growth
Current used materials, meeting these criteria include:
· High purity titanium
· Titanium-6 aluminum-4 vanadium alloy
· Vitallium, cobalt base alloy (V-75)
· High purity alumina
· Hydroxyapatite (HA)