An implant is a metal screw, made of a biologically acceptable metal, which is placed in the jaw bone. After the implant is accepted by the body, a tooth is built directly on it. An implant, therefore does not involve the adjacent teeth. A bridge, however, needs the support of the adjacent teeth - it is fixed to the neighbouring teeth. However, sometimes when a tooth is to be replaced at the end of the dental arch, a bridge is given by taking support from the tooth in front only - technically called as a cantilever bridge. However, case evaluation is critical in such cases.