Protein-Signaled Guided Bone Regeneration Using Titanium Mesh and Rh-BMP2 in Oral Surgery: A Case Report Involving...

Area of Science:

• Regenerative medicine
• Oral and maxillofacial surgery
• Biomaterials science

Background:

• Recombinant human bone morphogenetic protein-2 (rhBMP-2) is an osteoinductive growth factor used in bone defect reconstruction.
• Effective bone regeneration requires local target cells, which can be present at the wound site or added to scaffolding.
• rhBMP-2 has demonstrated potential in various oral and maxillofacial applications.

Purpose of the Study:

• To evaluate the clinical and radiographic outcomes of a large mandibular defect reconstruction using rhBMP-2.
• To report a case of ghost cell tumor of the jaw treated with rhBMP-2, avoiding autogenous bone harvesting.
• To highlight the effectiveness of rhBMP-2 in complex bone defect repair.

Main Methods:

• A large mandibular defect was treated with an absorbable collagen sponge loaded with rhBMP-2, combined with a titanium plate and mesh.
• Clinical and radiographic assessments were performed to evaluate the treatment outcome.
• Histological analysis was conducted to confirm bone regeneration and tissue integration.

Main Results:

• Successful clinical and radiographic evidence of bone regeneration in the large mandibular defect.
• The treatment facilitated the reconstruction of the defect without the need for bone harvesting from other body sites.
• Histological findings supported the osteoinductive capacity of rhBMP-2 in this case.

Conclusions:

• rhBMP-2, when used with a collagen sponge and fixation, is effective for reconstructing large mandibular defects, including those resulting from rare tumors.
• This approach offers a viable alternative to autogenous bone grafting, reducing surgical morbidity.
• rhBMP-2 shows promise for various applications including alveolar reconstruction, sinus augmentation, and treatment of segmental defects.