Threaded cylindrical samples of titanium, aluminum oxide, and titanium flame-sprayed with A1203 were implanted transversely in dog femurs. Half the samples were pushed into slightly oversize holes in the femurs, and half were screwed into slightly undersize holes. After implantation for 4 weeks, the former samples were pushed out and the lalter torqued out.Met,allographic and electron mimoprobe examination showed that essentially complete ingrowth of new trabecdar bone had occurred inro the threads of all sam…
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