Prosthetic chin pad has gradually become a hot item, so there are many materials. Then, experts point out that there are many methods of chin pad at present, including injection chin pad and artificial chin pad. Relatively speaking, many plastic surgeons still admire the prosthetic chin pad. There are mainly the following three types: 1 and expanded prosthesis chin. In clinical application, expanded polytetrafluoroethylene chin can be fixed on the bone surface with titanium nails, except that it is easy to sculpt and the internal micropores are conducive to the growth of fibrous vascular tissue. 2. Silicone prosthesis is suitable for all kinds of plastic surgery, including chin plastic. At present, the manufacturing technology of silicone prosthesis is very developed. The silicone prosthesis made of plastic material for chin is nontoxic and harmless, and the rejection reaction of human body is small, so it can be used to pad chin. The silica gel prosthesis fixed by special method is not easy to be infected and displaced, and the material itself is easy to be carved. The internal micropores are conducive to the growth of fibrous vascular tissue and can be fixed on the bone surface with titanium nails. 3, autologous cartilage pad chin, where the size of cartilage is suitable for chin pad surgery. The advantage of autologous cartilage is that it is human tissue, with high affinity, no rejection and good fixation after transplantation.