What materials are used for cranial repair of cranial defects in children? The skull always guards the brain and all soft tissues in the skull, protecting and supporting the head and facial organs. If the skull is defective, the brain may be in constant danger, at this time, if the head is attacked or bumped, it may directly injure the brain tissue, triggering serious consequences; even if such a drastic danger does not occur, then the lack of the skull, the incompleteness of the cranial cavity, but also make the intracranial environment becomes unstable, cerebrospinal fluid circulation, cerebral circulation, brain and nerve function may be impaired, triggering a series of cranial bone defect syndrome, and the patient also suffers psychological trauma. syndrome, and the patient is also traumatized psychologically. Therefore, cranial defects need to be repaired in a timely manner. Among the many patients with cranial defects, there is also a special group of children with cranial defects. Children’s physical and mental qualities may be more fragile than those of adults, and cranial defects may bring more serious impacts and injuries to children, so children’s cranial defects need to be repaired in a timely manner. Currently, the main materials used in clinical cranial bone repair are the traditional titanium mesh material and the new polyether ether ketone PEEK material. Compared with these two materials, PEEK material has better performance, more compatible with the human environment, higher strength, better protection, better molding effect, so both for adult patients with skull defects and children with skull defects, the use of polyether ether ketone PEEK material for cranial bone repair is a more sensible, more ideal choice. Children’s cranial defects with PEEK material for cranial repair is a very ideal choice, polyether ether ketone PEEK material performance is very excellent, can achieve better repair results. Therefore, it is recommended that patients choose the appropriate material for repairing their skulls when they undergo cranial bone repair, so that they can be repaired as early as possible and recover their health as soon as possible.