Patent ID: 7377943

Claim:
A blasting material for metallic implants comprising a bioactive vitreous-crystalline material comprising 15-45 wt.-% CaO, 40-45 wt.-% P 2 O 5 , 10-40 wt.-% ZrO 2 and 0.7-3.5 wt.-% fluoride, containing apatite and calcium zirconium phosphate as main crystal phases and a glass phase as an auxiliary component, wherein the main crystal phases jointly make up at least 35 wt.-% and the auxiliary components make up 5-15 wt.-% and wherein all of the percentage data are expressed in relation to the total weight of the vitreous-crystalline material and the particle size of the vitreous-crystalline material ranges between 53 and 350 μm.