Inevitably, there are some people in real life who have skull defects for one reason or another, which necessitates the need for skull repair surgery. Patients are concerned about the cost of cranial defect repair. Let’s take a look at the causes of cranial defects, first of all, one reason is trauma, life like falling objects, fights, etc. may lead to cranial injury, skull fracture, etc.; another reason is that the cranial bone itself is diseased, you may need to remove part of the diseased bone flap; there is another more important reason, is the treatment of other diseases need to be operated on to get rid of a part of the bone flap, such as brain hemorrhage or cerebral infarction, resulting in cranial hemorrhage or cerebral infarction. Another important reason is the need to remove part of the bone flap to treat other diseases, such as cerebral hemorrhage or cerebral infarction, which leads to high intracranial pressure and the formation of cerebral hernia, and so on. For patients with cranial defects, cranial bone repair surgery is needed to restore the integrity of the skull and restore the aesthetic image. The damage that can be caused by cranial defects is significant, and timely repair can restore the normal state of the brain tissue and prevent further unnecessary damage from occurring. Therefore, it is necessary to repair the defective area in order to restore the physiological structure of the skull, protect the brain tissue and maintain a good environment for the operation of brain life activities. The cost of cranial defect repair needs to involve a choice of repair materials, and cranial repair materials are very critical. Currently advanced polyether ether ketone material, also known as PEEK material is a better material for cranial bone repair. This material has similar performance parameters with the human skull, and can be three-dimensional reconstruction, a perfect fit for the defective area, the repair is seamless. It is the best material for cranial repair.