H. Caulier et al., THE EFFECT OF CA-P PLASMA-SPRAYED COATINGS ON THE INITIAL BONE HEALING OF ORAL IMPLANTS - AN EXPERIMENTAL-STUDY IN THE GOAT, Journal of biomedical materials research, 34(1), 1997, pp. 121-128
The response of bone of low density to uncoated, fluorapatite (FA), hy
droxyapatite (HA), and hydroxyapatite heat treated (HAHT) plasma-spray
ed coated implants was investigated 3 and 6 months after installation.
Forty-eight threaded implants of commercially pure titanium were inse
rted into the maxilla of twelve goats according to a split-plot design
. One goat died shortly after installation of the implants, five goats
were sacrificed 3 months after installation, and the other six goats
6 months after installation. Histological evaluation revealed no diffe
rence in bone reaction between the 3- and 6-month implantation periods
. In addition, probably due to the wide inter- and intra-animal variab
ility, no significant difference between the 3- and the 6-month period
s could be observed in the histomorphometrical measurements performed.
Further, no significant differences were found in bone reaction among
the various implant materials. Finally, qualitatively it appeared tha
t all coatings showed reduction in coating thickness and that such red
uctions were most pronounced for the HA coatings. (C) 1997 John Wiley
& Sons, Inc.