Exostosis: a donor site for autograft

Area of Science:

• Oral and Maxillofacial Surgery
• Regenerative Medicine
• Bone Grafting Techniques

Background:

• Autogenous bone grafts are the gold standard for bone reconstruction.
• Limited availability of donor sites can be a challenge in obtaining sufficient bone graft material.
• Exostoses represent a potential, readily accessible source of autogenous bone.

Observation:

• A patient with an exostosis on the lingual aspect of the mandible presented for treatment.
• The exostosis was surgically harvested using a chisel and mallet.
• The harvested bone was utilized as an autograft to fill a shallow osseous defect between teeth 46 and 47.

Findings:

• New bone formation was evident at the grafted site six months post-surgery.
• Histological and clinical evaluation revealed the newly formed bone possessed characteristics comparable to native bone.
• The exostosis graft successfully facilitated bone regeneration and defect closure.

Implications:

• Exostosis harvesting offers a viable alternative source for autogenous bone grafts.
• This technique may reduce donor site morbidity and increase graft availability.
• Further research can explore the broader application of exostosis grafts in treating various osseous defects.