Accidents can always cause one kind of damage to our body, and cranial defects are one of the more common ones. We should be clear that the skull is the protective layer of the brain, it plays a role in maintaining the normal activities of brain tissue, and if skull defect occurs, it cannot be ignored, because it will bring more danger. Cranial defect has many hazards, not only affects the appearance, but also threatens the safety of the head and brain, and may bring a series of cranial defect syndrome, which is also very traumatic to the patient’s psychology. Therefore, we should pay attention to it in time and go to a regular hospital for cranial repair surgery to restore the integrity of the cranial cavity, stabilize the intracranial pressure and avoid the occurrence of cranial defect syndrome. But on the issue of doing cranial bone repair surgery, it is difficult for patients to choose the surgical material, and the poor choice of material may affect the postoperative recovery and effect. Many hospitals currently use titanium mesh materials, which have indeed made some progress compared to those of the past, but still have some drawbacks and shortcomings, so a safer and more advanced material is urgently needed at this time. Our team uses PEEK, a very advanced polymer material that is highly elastic, hard, stable, and highly similar to autologous cranial bone, making it the ideal choice for skull repair surgery. How long does it take to do surgery for cranial bone repair with customized materials? Many patients will be concerned about this issue, indeed the skull repair materials are upgraded a lot compared with the past, and the materials used in the surgery will be customized before the surgery. Patients only need to do a CT scan of the skull after selecting the right material, and then they can have the manufacturer customize it according to the defect, and the customization period is about three or four days.