Hearing Loss, Bone Conduction - physiology, Cartilage - transplantation, Fibrin Tissue Adhesive - therapeutic use, Otitis Media, Suppurative - surgery, Bone Substitutes - therapeutic use, Hearing - physiology, Mastoid - surgery, Bone Cements - therapeutic use, Durapatite - therapeutic use, Eustachian Tube - physiopathology, Biocompatible Materials - therapeu...