An increasingly used option for replacing missing teeth is the dental implant. A dental implant is made from titanium in the shape of a root. When screwed into the jaw bone it integrates into it like a root. Implants can be used to support a crown, bridge or a denture. They feel very natural and surrounding teeth do not need any preparation. The disadvantages are initially high cost, the required surgery and the requirement for a significant number of visits over a number of months.