RESUMO
PURPOSE: This case report documents the histological, histomorphometric, and radiographic effects of a new radiated-preserved bone allograft for sinus elevation procedures. MATERIALS AND METHODS: This unique bone substitute differs from other forms of bone allograft processed through the standard cryopreservation method. Histology from bone biopsy core samples revealed newly formed bone with a well-organized lamellar bone structure in general and remaining particles were observed in contact with surrounding newly-formed bone. RESULTS: Histomorphometric results demonstrated an average new bone formation of 31.8%. Radiographic linear data demonstrated an 8.49% +/- 6.77% graft resorption from baseline to 6 months. CONCLUSION: The outcome of this report suggests that this bone allograft could be successfully used in sinus lifting procedures. It encourages further research of this radiated-preserved bone allograft material in oral and maxillofacial reconstruction.
Assuntos
Substitutos Ósseos , Transplante Ósseo/métodos , Criopreservação/métodos , Seio Maxilar/cirurgia , Procedimentos Cirúrgicos Pré-Protéticos Bucais/métodos , Transplante Homólogo , Bactérias/efeitos da radiação , Matriz Óssea/transplante , Regeneração Óssea , Tomografia Computadorizada de Feixe Cônico , Durapatita , Feminino , Humanos , Seio Maxilar/diagnóstico por imagem , Pessoa de Meia-Idade , Alicerces Teciduais , Replicação Viral/efeitos da radiaçãoRESUMO
Implant dentistry has developed predictable treatment outcomes. Nevertheless, there are multiple reasons for implant failure. This case report documents a previously unreported type of implant failure that occurred 1 month after crown cementation. The implant failure is believed to be associated with retained excess subgingival cement.
