Everyone knows the importance of the skull, which provides a hard defense wall for the human brain. However, the skull is easily damaged when it is suddenly hit by an external force. Once a skull defect occurs, the possible effects are enormous, and only through skull repair surgery can the integrity of the skull be restored and the damage minimized. When it comes to surgery, patients are more worried about the safety issue. In fact, cranial bone repair surgery has been available since the early days and has undergone a long history of development, which is technically quite mature, so patients do not need to worry. There are also great advances in the use of surgical materials, from bone cement and plexiglass in the beginning to titanium mesh and PEEK materials today. Currently, many local hospitals are using titanium mesh material for cranial repair surgery, which is less expensive and more progressive than earlier materials, but there are still some unavoidable defects. However, there are still some unavoidable defects of titanium mesh material, such as postoperative rejection, high chance of infection, and cutting pain. In addition, some patients in the clinic found that the pattern of titanium mesh material is obvious after the surgery, which makes them worry. Do I need to change the skull titanium mesh with obvious grain? In fact, this is also an abnormal performance after titanium mesh repair. If the titanium mesh grain is not replaced in time to deal with it, there is a risk of material exposure and skin breakdown over time, which will be more difficult to deal with again and more painful for patients. In fact, compared to titanium mesh, PEEK is a more appropriate material, which is a very safe polymer material, with better performance than titanium mesh material, and a good postoperative recovery. Our team has successfully applied the PEEK material, and we are constantly innovating and optimizing the design of the material, introducing the concept of aesthetic plastic surgery, and carrying out comprehensive PEEK cranioplasty to achieve the organic unity of structural restoration, functional perfection, and aesthetic appearance.