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Sci Rep ; 11(1): 4907, 2021 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-33649345

RESUMO

In skeletal surgical procedures, bone regeneration in irregular and hard-to-reach areas may present clinical challenges. In order to overcome the limitations of traditional autologous bone grafts and bone substitutes, an extrudable and easy-to-handle innovative partially demineralized allogenic bone graft in the form of a paste has been developed. In this study, the regenerative potential of this paste was assessed and compared to its clinically used precursor form allogenic bone particles. Compared to the particular bone graft, the bone paste allowed better attachment of human mesenchymal stromal cells and their commitment towards the osteoblastic lineage, and it induced a pro-regenerative phenotype of human monocytes/macrophages. The bone paste also supported bone healing in vivo in a guide bone regeneration model and, more interestingly, exhibited a substantial bone-forming ability when implanted in a critical-size defect model in rat calvaria. Thus, these findings indicate that this novel partially demineralized allogeneic bone paste that combines substantial bone healing properties and rapid and ease-of-use may be a promising alternative to allogeneic bone grafts for bone regeneration in several clinical contexts of oral and maxillofacial bone grafting.


Assuntos
Cimentos Ósseos/farmacologia , Matriz Óssea/transplante , Osteogênese/efeitos dos fármacos , Cicatrização , Animais , Regeneração Óssea , Substitutos Ósseos , Humanos , Masculino , Células-Tronco Mesenquimais , Monócitos , Ratos , Ratos Endogâmicos Lew
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