Teeth may be lost from a variety of causes - decay, gum disease, fracture, or trauma. Bridges are one way to replace missing teeth. Bridges are cemented to the teeth on either side of the missing tooth, called abutment teeth. Your dentist creates space for the bridge on the abutment teeth and creates a customized restoration for you. A simple way to think of a bridge is like 3 crowns joined together, with the middle crown being the 'fake' tooth replacing the one that is missing. This tooth is called the pontic.
Bridges can be used almost anywhere in the mouth - for front teeth or back teeth - and look just like your natural tooth did. Flossing under a bridge is different than flossing your natural teeth, and requires just a few seconds of extra time.
Replacing a missing tooth is important. Not doing so can allow the neighboring teeth or teeth in the other jaw (opposing jaw) to shift and cause more severe bite problems in the future. These problems add expense and time
Ask your dentist if you think you're a candidate for a bridge to replace a missing tooth. Your dentist will take many factors into account in assessing this for you, including the strength and bone support of the teeth on either side of the missing tooth, your age and any health conditions, your bite, and other considerations.