RESUMEN
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.
Asunto(s)
Sustitutos de Huesos , Trasplante Óseo/métodos , Criopreservación/métodos , Seno Maxilar/cirugía , Procedimientos Quirúrgicos Preprotésicos Orales/métodos , Trasplante Homólogo , Bacterias/efectos de la radiación , Matriz Ósea/trasplante , Regeneración Ósea , Tomografía Computarizada de Haz Cónico , Durapatita , Femenino , Humanos , Seno Maxilar/diagnóstico por imagen , Persona de Mediana Edad , Andamios del Tejido , Replicación Viral/efectos de la radiaciónRESUMEN
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.