In the current state of life, there are many causes of cranial defects. Most patients think about repairing the skull, but in terms of choosing a repair material, they don’t know which material to choose. Generally speaking, after an acute recovery from cranial defects, it is a good time for cranial repair after about three months. Sincerely, one year after the cranial defect has passed the good time for repair, by which time some patients may have already developed some uncomfortable symptoms, and then cranial repair should be performed as soon as possible to avoid more serious consequences. For cranial bone repair, the choice of material is very important. For example, the titanium mesh material commonly used in clinical practice is not ideal, with problems such as rejection, non-insulation, complications, and interference with CT MRI. At present, the polyetheretherketone peek material used by our team is a very advanced cranial bone repair material, which can well overcome the above problems and achieve the ideal repair effect. How to repair cranial defect? Timing of repair: mainly divided into two cases Generally speaking, the timing of repair surgery is different for different cases of cranial defects, mainly divided into two cases. First, for the wound is relatively clean open comminuted skull fracture caused by the defect, can be a period of immediate repair; Second, for closed craniocerebral injury, due to intracranial hypertension and decompression surgery to bone flap caused by the cranial defect, should be in the postoperative period of 2-3 months early cranial bone repair. Repair material: polyether ether ketone PEEK material is the new trend In the long-term development of cranial bone repair surgery, the repair material has undergone several times of innovation and upgrading. At present, the new repair material polyether ether ketone (PEEK), also known as peek material, is a very advanced and ideal material. PEEK is a special polymer material whose performance is very close to that of the human body’s own cranial bone, with strong histocompatibility, high comfort after implantation, high protection, and can be perfectly shaped through three-dimensional reconstruction, which is gradually becoming a new trend in cranial bone repair materials. Postoperative attention: After the skull repair surgery, patients should pay attention to nutrition and rest, avoid eating spicy and stimulating food in the short term, avoid overwork, avoid hair coloring and perming. Regular moderate exercise activities should be carried out. Generally one or two months after the operation, you can resume normal life and work.