Dental implants are titanium metal cylinders that replace tooth roots. They are placed into the jaw bones or skull where bone grows into them and locks them in place. Dental implants are used very effectively to replace one or more missing teeth permanently and can support a dental prosthesis such as a crown, bridge, denture, facial prosthesis or to act as an orthodontic anchor. Dental implants are regarded by many as one of the most important advances in dentistry in the last 50 years