What kind of material is cranial titanium mesh? Titanium is a metallic material with nice physical and chemical properties that has a wide range of applications in aerospace, petrochemicals, marine engineering, and household goods. Some people say that titanium metal also has a wide range of applications in the medical field, for example, it can be used as a material to replace the skull in neurosurgical cranial repair. It is true that the widely used cranial bone repair material in clinical practice nowadays is titanium mesh. The use of titanium mesh for cranial bone repair is an improvement over other materials used in the past, but it is also true that there are still some problems. The biocompatibility of this metal material is not particularly good, there may be rejection; titanium mesh material insulation is not good, may cause postoperative patients sensitive to hot and cold reactions; in addition, it may also affect the future CT, MRI and other medical examinations, and so on. Currently, there is a more advanced polyether ether ketone (PEEK) material with more excellent performance, which can achieve very ideal cranial bone repair results. Our team has applied this advanced PEEK material to do cranial bone repair, and achieved very good clinical response. Theoretical research and clinical practice has proved that PEEK material is highly biocompatible, there will be no rejection reaction; peek in terms of strength, elasticity, thermal insulation, stability, etc., and the human skull is comparable to the human body, there will be no hot and cold reaction sensitivity, and will not interfere with the medical examination; in addition, peek material can be three-dimensional molding, precise anastomosis of defective areas, highly restored the physiological structure of skull bone.