Titanium

The biocompatible material

Titanium is a biologically inert and biocompatible material and has been used in human and veterinary medicine since the 1930s. Its mechanical and biocompatible characteristics have proven ideal for this purpose ever since.

Material benefits

  • High degree of stability
    • Particularly in terms of contact with surrounding body tissues and when under stress.
  • Highly resistant to corrosion
    • When in contact with the body, titanium forms a protective oxide film which is extremely adherent, insoluble, and chemically stable, thus making it highly resistant to corrosion in a septic environment.
  • No immune reaction
    • Titanium is “invisible” to the body, causing no defensive response from the immune system.
  • Permanent physical union
    • Its high dielectric constants enable titanium to form a permanent physical connection with the surrounding bone tissue (osseointegration) due to the fact that it allows bone cells to grow on the contacting surface.
  • High tensile strength
    • Compared with other biocompatible materials such as stainless steel, titanium is many times lighter and nonetheless possesses a higher tensile strength, thus permitting an ideal strength-to-weight ratio for medical use.
  • Modulus of elasticity and coefficient of thermal expansion
    • Close to the values in human bone, thus preventing implant failure.

Not least, titanium is highly machinable and its outstanding properties can be enhanced even further using new process and surface technologies.