New technique for creating permanent experimental alveolar clefts in a rabbit model

Area of Science:

• Oral and Maxillofacial Surgery
• Regenerative Medicine
• Animal Models in Research

Background:

• Alveolar bone grafting is crucial for cleft lip and palate (CLP) rehabilitation.
• Evaluating bone graft materials requires histologic assessment, which is not feasible in human clinical studies.
• Existing animal models for alveolar clefts have limitations.

Purpose of the Study:

• To develop and validate a reliable animal model for simulating alveolar clefts.
• To provide a platform for histologic evaluation of bone grafting materials in a CLP context.
• To establish a reproducible surgical technique for creating permanent alveolar clefts in rabbits.

Main Methods:

• Surgical creation of permanent alveolar clefts in rabbits.
• Clinical and histologic examination of the created defects at 6 weeks postoperatively.
• Assessment of defect width, oronasal communication, and tissue healing.

Main Results:

• A consistent 1-cm wide alveolar cleft defect was successfully created.
• The model demonstrated oronasal communication and healthy epithelial lining at 6 weeks.
• The rabbit model proved suitable for further testing of bone grafting materials.

Conclusions:

• A novel rabbit model for alveolar clefts has been established.
• This model provides a histologic basis for evaluating bone graft performance.
• The model is efficient for testing various bone grafting materials for CLP treatment.