![]() Īdvantages of PEEK instead of metal implantsĬompared with metal implants, PEEK has two outstanding advantages. With the deepening of 3D printing applications, PEEK has gained more attention. Since the 1980s, it has received increasing attention from materials science researchers and bone science researchers, and it is possible to replace metal materials in the field of hard tissue repair and replacement. The chemical structural characteristics of thermoplastic special engineering plastic PEEK give it excellent mechanical properties, good biocompatibility, chemical resistance, easy processing and repeatable disinfection. Nevertheless, metal implants also have their unique advantages It's been 10 years since the first patient to implant a 3D printed titanium alloy hipįurthermore, metal implants may release harmful metal ions, resulting in formation of osteolysis or allergen and the metal implant with a conventional nuclear magnetic resonance imaging, computed tomography incompatibility, is not conducive to bone growth and Healing is monitored. After suffering from special external forces, patients will damage the surrounding normal organs, which ultimately leads to implant failure, which is called " stress Shielding effect. However, the elastic modulus of these traditional metal implant materials is much higher than that of bone tissue, and it is difficult to form a reasonable gradient strength. Traditional hard tissue implanted metal materials such as stainless steel, titanium and its alloys are widely used in the field of hard tissue repair and replacement due to their high mechanical strength, good biocompatibility and fatigue resistance.
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