ABSTRAKT

In this paper, soft tissue responses and attachment strength to porous titanium scaffolds with suitable surface microstructures were studied as a comparison of with and without bonelike apatite on the surface. All of the samples were implanted subcutaneously into the backs of rabbits (n = 7). Forty days and seventy days postoperation, the samples with the surrounding tissues were harvested, respectively. Some of them were used for immediate biomechanical attachment testing and the others for histological observations. Following mechanical testing, the received cross sections were analyzed with scanning electron microscopy with X-ray energy dispersion spectroscopy (SEM-EDX) in order to view the attachment of the tissues to different surfaces. The results showed that the attachment strength of all samples increased with time. The strength of porous titanium coated by bonelike apatite was higher than that of the uncoated one, and the interface integration of the materials/tissue was also better than that of the uncoated sample at both implantation periods.