Crowns and bridges usually take two or three appointments to complete. In the first visit, the teeth are prepared and molds of the mouth are taken. Temporary crowns or bridges are placed to protect the teeth while the custom restoration is being made. Since the teeth will be anesthetized, the tongue, lips and roof of the mouth may be numb. Please refrain from eating and drinking hot beverages until the numbness is completely worn off. Occasionally a temporary crown may come off.