In the last decades the research on innovative materials and technologies for applications in medicine improved considerably the quality of life and reduced the social costs of several diseases. Among materials for biomedical applications, bioactive glasses have been widely studied, since the 1970s, as third generation bone substitutes and biomaterials for tissue regeneration. The term “bioactive” is related to the ability of these glasses to stimulate bone regeneration trough a peculiar reactivity that induces the formation of a hydroxyapatite layer on their surface. A further peculiar property of bioactive glasses is the possibility of being doped with ions of therapeutic interest.