[Study of nitrogen silicon zirconium-hydroxylapatite as a coating on pure titanium implantation].
OBJECTIVE
To compare the osseointegration and corrosion of different kind of coatings on pure titanium.


METHODS
By plasma spraying technology, nitrogen silicon zirconium-hydroxylapatite (ZrSiN-HA) compound coating was prepared on the surface of pure titanium and the pure titanium was implanted with the mandible of the experimental animal. The superficial appearance of the compound coating was observed and analyzed by scanning electron microscope (SEM). The ZrSiN-HA, nitrogen silicon zirconium (ZrSiN), hydroxylapatite (HA) and pure titanium were compared and examined. In the four groups, the bone binding force of coatings were detected, and the superficial appearance of the break regions were observed by the electronic multipurpose material testing aircraft. In the four groups, the anticorrosive of coatings were compared and examined on the electrochemistry corrosion testing system.


RESULTS
Experimental results indicated that the implant surface sprayed with the ZrSiN-HA was more compact than that sprayed with HA. The crystallization was obvious. Compared with the other coatings, the bone binding force of the ZrSiN-HA coating was the highest, and its anticorrosive performance was the strongest.


CONCLUSIONS
The application of ZrSiN-HA coating is advantageous to the long-term retention of implant, and it has huge latent application value to dental dummy.
Yin
Lu
L
Dept. of Prosthodontics, Xiamen Stomatological Hospital, Xiamen 361003, China.
Hui
Ying-xue
YX
Yao
Jiang-wu
JW
D000818:Animals; D020099:Coated Materials, Biocompatible; D017886:Durapatite; D008422:Materials Testing; D008855:Microscopy, Electron, Scanning; D009584:Nitrogen; D016348:Osseointegration; D019736:Prostheses and Implants; D012825:Silicon; D013499:Surface Properties; D014025:Titanium; D015040:Zirconium
D020099:Coated Materials, Biocompatible; D017886:Durapatite; D015040:Zirconium; D014025:Titanium; D009584:Nitrogen; D012825:Silicon