You've undoubtedly crossed a bridge at least once in your life, but you might not have thought much about its purpose at the time. A bridge is a functional way to close the gap between one point and another. A dental bridge serves much the same purpose in your mouth: it literally "bridges" the gap created by one or more missing teeth.
Dental bridges are used to prevent missing teeth from causing surrounding teeth to shift, changing your bite, or make your jaw sore. Shifting teeth also create new places for dental plaque to hide, increasing your chances of needing a tooth filling or gum disease treatment.
Dental bridges serve an aesthetic purpose too. They allow you to show off your beautiful smile without shame or fear that your missing tooth is what people will remember. At the same time, dental bridges cost less than other methods of tooth replacement, making them a great option for you.