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Background: <p>Autogenous tooth bone graft (AutoBT), derived from extracted teeth, has emerged as a promising alternative for bone regeneration due to its osteoinductive and osteoconductive properties. Its structural and compositional similarity to bone supports physiologic bone regeneration, and it has been successfully applied in various clinical procedures. However, despite its increasing clinical application, evidence regarding the long-term outcomes of AutoBT in large cystic defects remains limited.</p> Case Presentation: <p>A 22-year-old woman presented with a 4-cm multilobular radiolucent lesion in the left mandible that was diagnosed as an odontogenic keratocyst (OKC). Following a period of decompression, cyst enucleation and bone grafting were performed using AutoBT combined with recombinant human bone morphogenetic protein-2 (rhBMP-2). Radiographic follow-up at 1.5&#xa0;months, 1&#xa0;year, and 3&#xa0;years postoperatively demonstrated stable bone remodeling, reestablishment of the cortico-cancellous architecture, and no evidence of recurrence. The postoperative clinical course was uneventful.</p> Conclusion: <p>This case demonstrates successful long-term bone regeneration using AutoBT combined with rhBMP-2 in a large mandibular OKC defect. Although limited to a single case, these findings support the potential of AutoBT combined with rhBMP-2 as a reliable graft material for extensive jawbone lesions. Further studies are needed to validate its long-term efficacy and safety.</p>

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Long-Term Bone Healing Using Autogenous Tooth Bone Graft Combined with rhBMP-2 after Enucleation of a Large Odontogenic Keratocyst: A Case Report

  • 期刊论文

  • 发表日期：

    2026年7月19日

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  • Seungtae Kim,
  • Jeong-Kui Ku,
  • Yongjun Cho,
  • Jae-Young Kim,
  • Jong-Ki Huh

摘要

Background:

Autogenous tooth bone graft (AutoBT), derived from extracted teeth, has emerged as a promising alternative for bone regeneration due to its osteoinductive and osteoconductive properties. Its structural and compositional similarity to bone supports physiologic bone regeneration, and it has been successfully applied in various clinical procedures. However, despite its increasing clinical application, evidence regarding the long-term outcomes of AutoBT in large cystic defects remains limited.

Case Presentation:

A 22-year-old woman presented with a 4-cm multilobular radiolucent lesion in the left mandible that was diagnosed as an odontogenic keratocyst (OKC). Following a period of decompression, cyst enucleation and bone grafting were performed using AutoBT combined with recombinant human bone morphogenetic protein-2 (rhBMP-2). Radiographic follow-up at 1.5 months, 1 year, and 3 years postoperatively demonstrated stable bone remodeling, reestablishment of the cortico-cancellous architecture, and no evidence of recurrence. The postoperative clinical course was uneventful.

Conclusion:

This case demonstrates successful long-term bone regeneration using AutoBT combined with rhBMP-2 in a large mandibular OKC defect. Although limited to a single case, these findings support the potential of AutoBT combined with rhBMP-2 as a reliable graft material for extensive jawbone lesions. Further studies are needed to validate its long-term efficacy and safety.