What is cranial repair surgery? In our life, we may have heard that some people have to undergo cranial repair due to traffic accidents, production safety accidents or surgical trauma resulting in cranial defects. So what is cranioplasty? Cranioplasty is a surgical procedure to repair skull defects caused by various reasons. Cranial repair is a routine procedure in neurosurgery and the surgical technique is quite mature. However, there are still cases of unsatisfactory surgical results in clinical practice. This is mainly due to the influence of the skull repair materials, such as the titanium mesh material which is widely used in the clinic nowadays, which may cause rejection, subcutaneous fluid, chronic pain, hot and cold sensitivity and so on. Therefore, if you want to achieve good cranial bone repair results, you should use good repair materials. Currently, an advanced polyetheretherketone material is emerging in the medical field, which is used in cranial bone repair with very good results. Currently, our team is using this advanced material for skull repair, and the clinical response is very good. This material can be 3D designed and 3D printed according to the patient’s own skull shape, which can highly restore the physiological structure of the skull. In addition, this material is comparable to the autologous skull in terms of elasticity, hardness, heat insulation, stability, etc., with good tissue compatibility and ideal results.