Quick answer: A dental bridge replaces one or more missing teeth with a false tooth (a pontic) held in place by crowns on the teeth next to the gap, or by dental implants. It fills the space, helps you chew and speak normally, and keeps nearby teeth from shifting. Bridges commonly last 10 years or more with good care. Because a single missing tooth increases the risk of tooth damage and decay as well as numerous other oral health problems, we always recommend replacing a miss