It is often said that disease waits for no man. The moment you find out that there is something wrong with your body is not the saddest thing, the saddest thing is that you miss the best time for treatment. So, when is the best time to repair skull loss? In this regard, some experts mentioned that: in terms of neurosurgery, the traditional view is that the best time for skull repair surgery is three months to six months. But at present, from the statistics of popular cases, it is advocated to have super early surgery or early surgery. Early surgery means that the surgery is done within three months. This will facilitate the patient’s recovery, both in terms of neurological recovery and wound recovery, which will be smoother. Of course, the effectiveness of treatment also depends on the choice of repair material, so the use of a new repair material, polyether ether ketone (i.e., PEEK material), is recommended for patients with cranial defects to allow for a better and faster recovery. After extensive clinical practice in recent years, the great advantages of PEEK materials in cranial repair have been well established. It is understood that PEEK materials have very good histocompatibility and basically do not produce rejection reactions; PEEK materials are shaped in three dimensions according to the patient’s cranial CT data and highly restore the physiological structure of the skull; PEEK skull is embedded in the repair, making the appearance of the repaired skull smooth and not producing cutting injuries like those caused by titanium mesh-covered repair; PEEK materials have good radiation transmission and do not In addition, PEEK is an ideal material for cranial repair because it is comparable to human cranial bone in terms of elasticity, strength, thermal insulation, and stability.