The skull is a very important organ of the human body, and if it is defective, it is important to go to the hospital at once to have it repaired. If the skull is not repaired, it will have a great impact on the health of the body, and in serious cases, it may even be life-threatening and affect life expectancy. If the skull is defective, the brain tissue inside the skull lacks the necessary protection, and it is easy to be injured; the skull defect makes the intracranial pressure abnormal, and the pressure inside and outside the skull is connected, which is not conducive to the circulation of the cerebral crematorium, and some of the functions of the brain tissue may be limited; in addition, the collapse caused by the skull defect also affects the aesthetics and so on. When the skull is defective, due to the loss of the protection of the bone flap, the effect of atmospheric pressure will make the ipsilateral cerebrospinal fluid circulation disorders and cerebral blood flow decline, resulting in potential brain tissue damage. Large cranial defects can easily cause deformation and displacement of brain tissues, enlargement of cerebral ventricles, disturbance of water flow in the brain parenchyma, affecting the production, absorption and circulation of cerebral crest fluid, resulting in the formation of traumatic hydrocephalus, cerebral bulging and other complications. It causes a series of neurological symptoms such as headache, dizziness, localized tenderness, irritability, anxiety, fear, unexplained discomfort and various mental disorders in patients, which is called trephined syndrome. After cranial repair, the flow of cerebrospinal fluid improves significantly, cerebral blood flow increases somewhat, and brain damage is ameliorated. Maintaining the integrity of the dura mater means protecting the brain, so cranial defects should be repaired in a timely manner. Of course, it is very important to choose an appropriate material for skull repair surgery. Which material can last longer for skull repair? At present, PEEK material is a more advanced repair material, can be managed for life. PEEK material can be three-dimensional reconstruction, 3D printing, highly restored cranial physiological structure, and this material is very good tissue compatibility, basically will not produce what the reaction of rejection, but also has a strong ray cast transmissibility, will not affect the future of the CT MRI and other medical examinations, and its elasticity, strength, thermal insulation, stability, etc. are very ideal for cranial bone repair surgery. Very ideal cranial bone repair material, PEEK material can be perfectly combined with your own cranium.