Each part of the human body has its role, the lack of one can not. For example, if a piece of skull is missing, it is not only unattractive, but also dangerous in case of bumps and bruises. Moreover, when the skull is missing, the intracranial pressure will be very unstable, and all the life activities in the skull will be limited. Some patients who do not understand the effects of cranial defects do not pay much attention to this problem, and some patients even feel that there is no need to bother about it, thinking that it will grow up by itself. But in fact, for most patients, the skull will not grow back on its own, especially for large skull defects, which require skull repair surgery to rebuild the complete skull. Overall, skull repair surgery is safe and can be very beneficial to the patient. However, the key to skull repair surgery is the material, and a good choice of material can achieve a more ideal repair effect. At present, many hospitals widely use titanium mesh material, and some patients ask the question of the service life of titanium mesh cranial repair, if no abnormalities occur after surgery, titanium mesh can be used for life. However, the problem is that titanium mesh is not ideal in some aspects, there are some shortcomings and defects, which may produce some problems. There are a large number of clinical practice shows that the titanium mesh material repair effect is not that good, some patients will have some adverse reactions after surgery, such as the occurrence of rejection and infection, can cause the patient local hot and cold reaction sensitive problems, and cutting injury, and even the material will occur exposed, etc.. In comparison, the PEEK material currently used by our team is safer and more desirable; it is histocompatible, stable, and flexible, and avoids the problems associated with titanium mesh. At the same time, the team continues to improve and innovate the technology and apply the concept of plastic surgery to make the post-operative results more beautiful.