Objective To compare the osseointegration and corrosion of different kind of coatings on pure titanium. ethods By plasma spraying technology, nitrogen silicon zirconium-hydroxylapatite（ZrSiN-HA） compound coating as prepared on the surface of pure titanium and the pure titanium was implanted with the mandible of the experimental nimal. The superficial appearance of the compound coating was observed and analyzed by scanning electron icroscope（SEM）. The ZrSiN-HA, nitrogen silicon zirconium（ZrSiN）, hydroxylapatite（HA） and pure titanium were ompared and examined. In the four groups, the bone binding force of coatings were detected, and the superficial ppearance of the break regions were observed by the electronic multipurpose material testing aircraft. In the four roups, the anticorrosive of coatings were compared and examined on the electrochemistry corrosion testing system. esults Experimental results indicated that the implant surface sprayed with the ZrSiN-HA was more compact than hat sprayed with HA. The crystallization was obvious. Compared with the other coatings, the bone binding force of he ZrSiN-HA coating was the highest, and its anticorrosive performance was the strongest. Conclusion The application f ZrSiN-HA coating is advantageous to the long-term retention of implant, and it has huge latent application alue to dental dummy.
