Аннотация:The introduction of a 10 -50 mass% of brushite powder or tricalcium phosphate heated at 50 - 70 degrees C in a hydroxyapatite slip leads after annealing at 1200 degrees C to formation of resorbable calcium phosphate phases which make it possible to regulate the degree of bioactivity of the foam ceramics. Keywords: calcium phosphate, foam, ceramics, hydroxyapatite, brushite, tricalcium phosphate, bioactivity