Customized allogeneic bone grafts for maxillary horizontal augmentation: A 5‐year follow‐up radiographic and histologic evaluation

Abstract

We report the histological evaluation of an individualized allogeneic bone block 5 years after alveolar ridge augmentation. The biopsy showed a well-vascularized lamellar bone with fatty incorporations without any avital allograft remnants. The presence of osteocytes, lining cells, macrophages, and blood vessels indicated a healthy and vital bone tissue.

Allogeneic cortical struts and bone granules for challenging alveolar reconstructions: An innovative approach toward an established technique

“…Especially cancellous bone blocks made of freeze‐dried bone allograft demonstrated comparable clinical results to cortical autologous bone blocks in certain indications 26 . A recent publication demonstrated the full conversion of cancellous allogeneic into autologous bone by a bone core biopsy retrieved 5 years after augmentation 36 . In addition, several studies have reported high survival rates of implants placed in alveolar ridges augmented with allogeneic bone 20,21,37,38 and bone defects raging from sinus floor elevation to reconstructions of alveolar clefts have successfully been restored with allogeneic bone grafts 24‐28,39 …”

“…G-I, Final situation with prosthetics autologous bone by a bone core biopsy retrieved 5 years after augmentation. 36 In addition, several studies have reported high survival rates of implants placed in alveolar ridges augmented with allogeneic bone 20,21,37,38 and bone defects raging from sinus floor elevation to reconstructions of alveolar clefts have successfully been restored with allogeneic bone grafts. [24][25][26][27][28]39 The high success rate and reliability of autologous cortical shells filled with autologous bone particles even in extensive bone F I G U R E 5 Crestal incision design with vertical releasing incisions were placed to access the defect site.…”

Alveolar ridge augmentation using the shell technique with allogeneic and autogenous bone plates in a split‐mouth design—A retrospective case report from five patients

“…Hence, the consecutive insertion of an implant demands the more or less complex restoration of bony structures 1 . Allogeneic or autogenous bone block transplantations or guided bone regeneration with bone granules and occlusive membranes demonstrated predictable and successful outcomes in alveolar ridge augmentation surgery 2‐4 …”

“…Allogeneic bone materials seem to be the closest available equivalents to autogenous bone transplants in clinical applications in terms of patient outcomes 17 . As digitalization advanced, it became possible to mill allogeneic bone blocks to suit the defect geometry following preoperative diagnosis with cone beam computed tomography (CBCT) in order to insert these in a simplified surgical procedure 3,18,19 . Allogeneic full block transplants are, however, subject to similar resorption processes as autogenous full block transplants 4 .…”

Enxerto ósseo sintético em reparo de defeitos ósseos em paciente pediátrico: Relato de caso / Synthetic bone graft in bone defect repair in pediatric patient: Case re-port

“…Os enxertos alógenos apresentam benefícios por incluirem adequado suprimento sanguíneo, operação com trauma reduzido, menor perda de sangue e potencial antigênico extremamente baixo 8 .…”