Treatment of Severely Resorbed Maxilla Due to Peri-Implantitis by Guided Bone Regeneration Using a Customized Allogenic Bone Block: A Case Report

Abstract

Abstract:The objective of this case report is to introduce a customized CAD/CAM freeze-

Bilateral maxillary augmentation using CAD/CAM manufactured allogenic bone blocks for restoration of congenitally missing teeth: A case report

“…While autologous bone transplants are still being considered the gold standard in bone grafting, BSM have grown in acceptance due to substantial drawbacks of autografts such as the creation of an additional donor site associated with prolonged surgical time and increased risk of infections being the most obvious . Although processed allogenic bone grafts have only entered the European dental market in recent years, their application in GBR is becoming an advancing alternative to autologous bone transplants . This has resulted from the broad set of indications in which allografts function predictably and analogous to the surgical techniques established for autografts.…”

“…Due to the accuracy of this manufacturing process, manual adaptations of bone blocks become widely obsolete which drastically reduces the risk of graft contamination and complications. Additionally, the customization process can be used to maximize the contact area of the graft and the host bone, ensuring ideal trophic support of the graft and fast integration …”

“…Blood was drawn from the patient for the production of leukocyte platelet‐rich fibrin (L‐PRF) matrices. A special incision technique, which comprises the design of half a pillar, thus termed semipillar incision, was applied . At first, a horizontal incision with a length of about 30 mm was placed parallel to the osseous defect in the flexible mucosa with a distance of approximately 8 mm to the mid‐crestal area, leaving the keratinized gingiva untouched.…”

“…By implementing this method, not only harvesting of autologous bone can be avoided, but also manual adaptation of the block graft, thereby saving time and reducing the risk of contaminations and complications . Furthermore, due to the optimal fit of the block, the contact area of the bone block and the native bone is maximized, maintaining optimal graft incorporation …”

Treatment of a bilaterally severely resorbed posterior mandible due to early tooth loss by Guided Bone Regeneration using customized allogeneic bone blocks: A case report with 24 months follow‐up data

“…Altogether, the application of allogeneic bone blocks is recently becoming a popular alternative to conventional augmentation procedures. Although there are some studies and case reports referring to auspicious results in reconstructing maxillary bone defects with allografts, there is still very few literature regarding the successful use of allografts.…”