Titanium is a metal, not a trace element needed by the human body, and is not absorbed by the body through administration or contact, and therefore has no significant effect on improving or maintaining the level of health of the human body. Titanium is widely used in the manufacture of medical devices and is a commonly used human replacement material. The biocompatibility, mechanical properties similar to human bone, and corrosion resistance that titanium has can be beneficial to the human body when applied intraoperatively: 1. Biocompatibility: due to the biocompatibility of titanium, it can be better compatible with the tissue after implantation to replace damaged human tissue, which helps human tissue to better 2, and human bone similar mechanical properties: titanium mechanical properties and human bone tissue is more similar, so it can play a better replacement role, will not produce significant stress changes, help the human body to adapt as soon as possible after surgery; 3, corrosion resistance: titanium is stable, so it can resist the erosion of human secretions, not easy to occur corrosion damage phenomenon, and will not produce toxic and harmful effects on the human body. Therefore, the benefits of titanium are mainly for people who need to perform human hard tissue replacement, such as artificial hip replacement, artificial knee replacement, fracture fixation, heart valve repair, pacemaker, etc., and dental implant body, dental implant fixation and other procedures.