Internal injury in the body, bone, joint damage titanium plate caused by tumors, the use of titanium and titanium alloy-made artificial joints, bone plates and screws, are now widely used in clinical practice. Also for hip joint (including the femoral head), knee, elbow, metacarpophalangeal joints, interphalangeal joint, mandible, artificial vertebral (spinal orthotics), cardiac titanium alloy bar pacing instrument shell, artificial heart (heart valves). dental Implants, orthodontic nickel titanium and titanium mesh in skull is shaping other aspects.