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Peek plastic2/28/2023 PEEK is a polymer material with good biocompatibility, wear resistance and stable chemical properties, which can be sterilized with high temperature steam or gamma irradiation. The inherent properties of these materials themselves affect the medical effect, and 3D printing gradient, porous material metal fabrication through structural design can effectively reduce the adverse effects. If there is a hematoma or tumor near the intracranial implant, it will be difficult to determine on the image and the modulus of titanium is 2-3 orders of magnitude higher than that of bone, and the stress shields Osteolysis and loosening can occur problems with metal heat conduction can also make patients more sensitive to weather changes. Titanium alloys are highly bright in postoperative CT or MRI imaging. Processing MethodĬlinically, titanium alloy skull implants are processed by impression and multi-point forming, CNC machining and 3D printing. Titanium mesh and titanium plate implants made of this material can be fixed by titanium screws, and have always been the first choice for domestic neurosurgeons and patients to treat skull defects. Medical titanium alloy has good biocompatibility and mechanical strength, easy machining titanium and relatively low cost. In this issue, we will discuss the traditional and 3D printing methods of manufacturing skull restorations with these two materials, as well as the problems they face. As an important application of 3D printing in the medical field, laser (electron beam) printed titanium alloy vs PEEK manufactured by FDM technology have played an important role in skull repair. Due to the huge individual differences, in addition to strict requirements for biocompatibility and mechanical properties, cranial implants have extremely high demands for individualization. Cranioplasty is the most common type of brain surgery.
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