What materials are used to repair the skull? Cranial repair surgery is a routine procedure in neurosurgery and a very old surgical procedure. It was practiced thousands of years ago by our ancestors. After a long period of development and progress, cranial bone repair surgery has become very mature and widely practiced under modern medical conditions. One of the most important factors affecting the outcome of cranial bone repair is the choice of cranial bone repair material. This is also an important issue that most patients with cranial defects are concerned about, so what materials are used to repair the skull? In fact, in the long history of the development of evolution, cranial bone repair materials are also followed by constant iteration and innovation. In the development of cranial bone repair, there have been used velvet sheet, metal sheet, animal bone, autologous bone, organic glass, calcium phosphate bone cement, hydroxyapatite, silicone and so on. However, these materials have been withdrawn from the stage of history and are no longer used due to various problems. Currently, titanium mesh is the most widely used cranial repair material in general primary hospitals across the country. Titanium mesh is advanced compared to earlier materials, but it is not ideal. However, it is not ideal, and there are still some defects and shortcomings in clinical application, and there may be some adverse reactions after surgery. For example, some patients in the titanium mesh cranial repair may be infected after surgery, wear and tear of the scalp, resulting in scalp ulceration, material exposure, postoperative impact of ct magnetic examination; because of titanium mesh is not insulated, the patient will be more sensitive to the outside world of the hot and cold environment after surgery, resulting in discomfort. In addition, titanium mesh hardness is not too high, if hit by external forces, it is easy to deform, resulting in scalp collapse and so on. Therefore, titanium mesh is not an ideal material for skull repair. The current application of new polyether ether ketone peek material, is a special polymer material, its properties are very close to the human autologous skull, and even some aspects are stronger than the autologous skull. peek material in the histocompatibility, hardness, elasticity, thermal insulation, radiation transmissibility and molding effect is very good, very well overcome the titanium mesh material may produce a variety of problems, to achieve excellent repair results, to achieve excellent repair results. It is a new trend in cranial bone repair materials, and our team is now using this polyether ether ketone peek material extensively, and the team is constantly carrying out technical innovation and upgrading, material optimization and design, and introducing the concept of cosmetic plastic surgery, so as to comprehensively carry out peek cranial bone repair, and achieve good results in the clinic.