Aim of the study: Demineralized bone particle (DBP) was known to induce osteogenesis by osteoinduction, and has been used for bone regeneration in the oral and maxillofacial surgery. The aim of this study was to confirm the usefulness of the DBP/PLGA ...
Aim of the study: Demineralized bone particle (DBP) was known to induce osteogenesis by osteoinduction, and has been used for bone regeneration in the oral and maxillofacial surgery. The aim of this study was to confirm the usefulness of the DBP/PLGA composite scaffold in bone tissue engineering.
Material & methods: DBP/PLGA scaffolds were prepared by solvent casting/salt leaching method. DBP/PLGA composite scaffold in fibrin gel was applied into rat cranial bone critical size defect (CSD:8mm in diameter). At 4, 8 weeks after implantation, new bone formation was evaluated by histological analysis of H-E staining and soft X-ray analysis.
Results: DBP/PLGA composite scaffolds in fibrin gel showed rapid and much more bone regeneration in rat cranial bone defects than PLGA graft group and no graft control group.
Conclusion: This results suggest the feasibility and usefulness of DBP/PLGA composite scaffold in bone tissue engineering.
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Key Words) Demineralized bone particle (DBP), DBP/PLGA composite scaffold, Rat cranial bone critical size defect, Bone tissue engineering.