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INTRODUCTION As a new class of bioactive materials for bone regeneration,ordered mesoporous bioactive glasses(MBG)have attracted much attention in recent years.Compared with traditional bioactive glasses,the typical features of MBG are as follows:(1)They have highly ordered mesoporous channel structure(2-20nm),high surface area and pore volume;(2)Since the nanostructure is significantly improved,MBG have greatly enhanced apatite-mineralization ability and degradation;(3)MBG can be used to delivery drugs with its high specific surface area and pore volume.