“…Additionally, the use of synthetic materials including polytetrafluoroethylene 29,30 and porous polyethylene 31-34 has also been described. Autogenous and irradiated tarsus, [35][36][37][38] donor sclera, 39,40 dermis grafts, 41 auricular cartilage, 20,42-45 cadaveric dermal collagen, 1 and hard palate mucosal grafts 1,3,4,22,23,[46][47][48][49][50] have also been used with varying success rates. The auricular cartilage and hard palate mucosal grafts have probably enjoyed the most use.…”