Production of porous biocompatible or bioactive glass or glass ceramic comprises melting, breaking or pulverizing the base materials, feeding to extruder and using the materials as additives to produce porous/open pore material by digesting

Production of porous biocompatible or bioactive materials having open pore microstructure of known base materials comprises melting, breaking or pulverizing base materials, feeding to extruder, and using materials as additives to produce porous or open pore material by subsequent digesting whether additive materials are introduced into glass melt as solution, emulsion or mixture. Production of porous biocompatible or bioactive glass or glass ceramic or other biocompatible or bioactive materials having an open pore microstructure of known base materials comprises melting, breaking or pulverizing the base materials, feeding to an extruder, and using the materials as additives to produce a porous or open pore material by subsequent digesting whether the additive materials are introduced into the glass melt as solution, emulsion or mixture.