Solid silicone material for rhinoplasty Solid silicone: It is a commonly used material for rhinoplasty at present and is a polymer silicone. It has been used since 1972, and after more than 20 years of observation, although its complication rate can reach 5%-20%, it is still one of the preferred materials for rhinoplasty in clinical practice because of its good biocompatibility and low price. Solid silicone can not establish blood circulation with the body, forming tissue connection, only fibrous tissue wrapping, so it can penetrate the skin at the tissue weakness, due to the contracture of the fibrous envelope, can cause the body surface projection of silicone prosthesis. Rhinoplasty material of expanded polytetrafluoroethylene expanded polytetrafluoroethylene (ePTFE): from the medical point of view, is currently the most ideal biological tissue substitute. Due to its good biocompatibility and unique microporous structure, non-toxic, non-cancerous, non-allergenic and other side effects, and human tissue cells and blood vessels can grow into its microporous, forming tissue connections, as autologous tissue. The effect of rhinoplasty is very satisfactory. Solid silicone PK Teflon (1) Softer than silicone rubber, more natural after surgery. (2) No “transparent feeling” of silicone rubber. (3) Tissue can grow into the material, better long-term fixation. (4) The chance of wearing out due to excessive tension is low. Ivory of rhinoplasty material Ivory: the material used for rhinoplasty is polymethylmethacrylate (PMMA), which is one of the earlier solid biological tissue substitutes used for rhinoplasty. It has good biocompatibility and needs to be blended when used for rhinoplasty, which is very easy to contaminate. Ivory has good biocompatibility and generally does not have rejection reaction, but it is gradually abandoned for rhinoplasty because of its hardness, the difficulty of sculpting and shaping, and the protection of animals. Artificial bone material of rhinoplasty material Artificial bone material: mainly refers to hydroxyapatite. It is the main inorganic component of human bone tissue, thus its biocompatibility is good, non-toxic, non-teratogenic, non-allergenic and non-carcinogenic side effects. At present, it has been widely used in dentistry and orthopedics. Artificial bone material is used for rhinoplasty, which is simple to operate and easy to shape, especially for those with low nasal bridge, the postoperative effect is particularly satisfactory.