A bridge is indicated when a tooth is missing and the teeth either side of the gap are in good condition. These good teeth can then be utilised to support the false tooth.
The way in which the false tooth is supported varies, but usually entails crowning the support teeth. The technique used to prepare the supporting teeth is similar to that used to provide a crown, i.e. the teeth are first of all prepared, then an impression taken.
The dental technician then makes the bridge which is then fitted providing the appearance and fit is satisfactory at the second appointment.