Efficacy of autologous cortico-cancellous bone graft and platelet-rich plasma with or without Bio-Oss in bone regeneration for unilateral alveolar cleft defects: A randomized controlled trial.

INTRODUCTION

Alveolar cleft grafting is crucial in cleft lip and palate rehabilitation, promoting maxillary continuity and facilitating dental development. While autologous bone grafts are the gold standard, combining them with platelet-rich plasma (PRP) and xenografts like Bio-Oss has the potential to enhance bone regeneration and long-term stability. This study aimed to evaluate the synergistic effects of combining autologous cortico-cancellous bone grafts, PRP, and Bio-Oss in alveolar cleft repair.

MATERIALS AND METHODS

Twenty patients (aged 8-25 years) with unilateral cleft lip and palate were randomly divided into two groups. Group A received autologous cortico-cancellous bone grafts combined with PRP, while Group B received the same grafts with PRP and Bio-Oss. Bone density, pain, and wound healing were assessed at various intervals up to one year postoperatively. Data were analysed using repeated measures ANOVA and Bonferroni post hoc tests.

RESULTS

Group B demonstrated significantly higher bone density (1028.5 ± 45.2 HU) at six months and one year compared to Group A (P < 0.05). Bone resorption occurred in both groups within the first three months, but Group B showed greater bone regeneration. No significant differences were noted in wound healing between the groups, though two patients in Group B experienced secondary healing due to infection.

CONCLUSION

The combination of autologous bone grafts, PRP, and Bio-Oss may enhance bone regeneration and stability in alveolar cleft repair. Further studies are needed to validate these findings and optimize clinical protocols.