[Assessment of the interface reaction of endosseous implanted bio-sinterceramics by electron probe microanalysis]

The electron ray microanalysis (ESMA) showed an intimate bone-implant-compound already 4 weeks postoperatively. This compound was detectable in all sinter variants after 78 weeks. An area with changed material contrast was prepared on the surface of the implant with an extent of 45-55 micron until the 24th week and over 100 micron after 78 weeks. A surface stratum relatively rich in calcium and absolutely rich in phosphorus was formed in the immediate contact to the regenerated bone opposite to the implant nucleolus. This stratum had an approximate consistent extent of 20-35 micron from the 12th week. The relative intensity of the stratum rich in calcium and phosphorus corresponded to that of the bone around the implant. The stabilization of the reactive surface stratum can become assumed by that.