Newly Developed Resorbable Magnesium Biomaterials for Orbital Floor Reconstruction in Caprine and Ovine Animal Models—A Prototype Design and Proof-of-Principle Study

Background: orbital floor fractures have not been reconstructed using magnesium biomaterials. Methods: To test technical feasibility, ex vivo caprine and ovine heads (n = 5) were used. Head tissues harvested from pubescent animals 5; mean age: 3.2 years; mass: 26.3 kg) stored below 11 degrees for 7–10 days. All procedures performed in a university animal resource facility. Two experienced maxillofacial surgeons both orbits of all step-by-step preplanned dissection. A transconjunctival approach was chosen to repair the with three different implants (i.e., implants; titanium mesh; polydioxanone or PDO sheets). The position each implant evaluated by Cone-beam computed tomography (CBCT). Results: Axial, coronal, sagittal plane images showed good positioning plates. plates had radiographic visibility similar that sheets but lower than mesh. Conclusions: prototype design study novel indication Further testing this new biomaterial may lead first resorbable mechanical properties extensive wall defects.