In neurosurgery, craniotomy is a common procedure that may be performed to treat problems such as craniosynostosis and traumatic brain injury. For many patients with combined high cranial pressure, craniotomy usually requires decompression of the bone flap, which may leave a skull defect. Cranial bone is very critical to human health, it plays an important role in protecting brain tissue, after craniotomy, if the cranial bone is severely damaged, the brain tissue will be easily attacked by the outside world, which is very dangerous. Moreover, long-term cranial defect will bring various discomfort to the patient and cause cranial defect syndrome. Therefore, the cranial defects left after craniotomy should not be ignored, and it is necessary to follow the doctor’s advice and go to the hospital for cranial repair surgery at the right time. Generally speaking, 3 months after craniotomy is the right time to do the surgery, which is more conducive to recovery. So, is the skull bone removed from craniotomy still useful? This is a question that many patients have, and here we need to tell you that the skull bone removed during craniotomy is generally not recommended to be used again, one is difficult to preserve, and the other is easy to inactivate. In general, cranial bone repair at a later stage requires the use of artificial materials for replacement. The PEEK material used by our team is the ideal material for cranial repair. It is a very safe polymer material, and its properties are very compatible with the font cranium. At the same time, we also continue to innovate and upgrade the technology and scientifically combine the concept of aesthetic plastic surgery together, while highly restoring the human skull, the appearance also becomes more beautiful.