Texture of the titanium implant surfaces
AbstractThe aim of this review was to update the concepts regarding the preparation of the surfaces of titanium implants, focusing on SLA (sandblasted and acid etched implants). Texture was the most remarkable isolated feature, regarded as an osseointegration promoter. In a comprehensive review of the effects of implant surface topography on cell behavior, one can verify that there is bone apposition onto the implant surface regardless of its characteristics: polished or rough, made of titanium. Studies indicate that microstructuring by sandblasting and acid etching (SLA) enhances the osteogenic properties of titanium. Roughness is mandatory for bone apposition. It has been shown that roughness may play an important role in the percentage of bone apposition as well as in the velocity of apposition. In this review, a quite promising type of surface called SLA is pointed out, showing that either roughness or acid conditioning of the surfaces can significantly improve shear strength. Besides optimizing the procedure, these surface characteristics may, eventually, allow for an earlier loading of the implant and extend the indications for implants in low-density alveolar bone and in regenerated bone.
UNITERMS: titanium; dental implant; texture of surface.
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