The present invention relates to a bone regeneration material comprising:-a solid first phase of hydroxyapatite of natural origin which is macroporous, having pores of diameters greater than or equal to 50 pm, preferably pores of diameters between 50 and 100 pm, and - a solid synthetic second phase of calcium phosphate intended to enrich said first phase, said second phase having a Ca/P molar ratio of between 0.2 and 2, preferably of between 0.3 and 1.8, preferentially of between 0.5 and 1.65, said bone regeneration material having a defined weight ratio of said solid first phase of hydroxyapatite of natural origin to said solid synthetic second phase of calcium phosphate of between 99/1 and 1/99.
