For bridge Preparation, 1st step involves recontouring of teeth by removing a portion of enamel to allow room for a crown to be placed over them. The next, step is to make impressions of the teeth, which serve as a model from which the bridge, pontic, and crowns will be made by a dental lab. When the patient returns to the dental office, the dentist removes the treatment crown/ bridge and replaces it with the permanent one. The dentist then adjusts the crown/bridge for the proper bite and fit, and the crown/ bridge is permanently placed in the mouth.