Tissue response to titanium implants in the rat maxilla: ultrastructural and histochemical observations of the bone-titanium interface.

摘要: Background: The detailed mechanism of osseointegration, the most appropriate implant-bone interface, remains unclear in jaw tissues at ultrastructural level contrast to many reports using long bones. present study on tissue response titanium-implantation an animal model rat maxilla. Methods: Animals were sacrificed 1 28 days postimplantation and prepared specimens, freed from implants by a cryofracture technique, processed for transmission electron microscopy histochemistry tartrate resistant acid phosphatase activity (TRAPase). Results: Different patterns bone formation recognized between lateral base areas implant cavities. In area with narrow gaps, deposition took place pre-existing towards after active resorption osteoclasts reactive TRAPase. However, no distinct appeared where had been installed close osteotomy margin. ...