The human cranium is a very important organ and tissue, and if for some reason there is a defect in the cranium, cranial repair is necessary. Why? Because our brain needs the protection of the skull, but also need the skull to maintain normal intracranial pressure, to ensure the normal function of the brain, there is also the intact skull has an aesthetic effect, otherwise the lack of a piece of it is very difficult to see. What are the materials used for cranial repair? When it comes to skull repair, the material is very crucial. What are the materials for cranial repair? Traditional repair materials, ranging from animal bone and plexiglass to light apatite and calcium phosphate bone cement materials, are no longer used. Nowadays, titanium mesh or titanium plate is more commonly used in medicine, although it has been improved, it still has some disadvantages and drawbacks, such as causing some complications, affecting the future imaging examination, etc.. Currently more advanced is the PEEK material (polyether ether ketone). This material is a three-dimensional customized, highly restored skull structure, precise anastomosis defective area, and this material can be fused with the autologous skull, all in one, elasticity, heat conduction, hardness, stability and other properties are also similar to the human skull, is the ideal material for repairing the skull.