STRUCTURAL AND ULTRASTRUCTURAL COMPARATIVE STUDY OF TITANIUM AND ZIRCONIUM IMPLANTS IN RABBIT FEMUR
Abstract:
As years passed by, the use of biomaterials for implants in hard tissues became more
commonly used. Since they are heterologous materials, it is extremely important that before using any
implant material, it is minutely tested from different points of view. The implant has to display special
characteristics so that it may be accepted by the body, even if it is perceived as a foreign object. At the
same time, the implant has to allow the appropriate proliferation of the repairing tissues around it till it
is totally incorporated in the hard tissue (bone). The incorporation has to be so well made so that the
implant is stable/resistant to the mechanical demands (pressures, pulls etc.) that will act upon the region
where it shall be inserted. The implant material needs to display specific characteristics so that the body
accepts it as best as possible and incorporates it extremely well in the hard tissue. These properties refer
especially to aspects of biocompatibility, implant construction and biomechanics (Osborn and Newesly,
1980).
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