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Published on: August 13, 2019
Sinus Floor Augmentation by Intraoral Endoscopic Approach for Biomaterial Study in a Rabbit Model
Ivan Valdivia-Gandur1, Víctor Beltrán2, Eduardo Borie3
1Biomedical Department, Universidad de Antofagasta, Antofagasta, Chile.
Aim:
To develop a new surgical model for sinus floor augmentation (SFA) in rabbit for experimental purposes.
Materials And Methods:
Eight adult rabbits were used, two for a surgical design using the anatomical dissection study, and the other six for an endoscopically assisted intraoral approach of SFA unilaterally, creating a subantral space where an allograft biomaterial was deposited. SFA was verified through cone-beam computerized tomography. Healing, weight, food, feces, and behavior were evaluated for 4 weeks post-operatively.
Results:
All animals survived. There was no bleeding or infection; inflammation was mild. No changes were observed in terms of feeding, weight, feces, or behavior. Tissue healing was normal.
Conclusion:
This model is a refinement of the experimental technique and is a real option for SFA, without compromising animal morbidity because of its conservative design. The minimally invasive approach with endoscopic assistance reduces bias and improves surgical predictability.
