Crowns are a type of dental restoration which, when cemented into place, fully cup over the portion of a tooth that lies at and above the gum line.
In comparison, fillings are dental restorations that fill in or cover over just a portion of a tooth.
What is a bridge?
You have one or more missing teeth due to decay or an accident. This loss changes the look of your smile, your bite, and puts stress on surrounding teeth to compensate for the lost tooth. One option your dentist may suggest for replacing the lost tooth is with a bridge. The missing tooth is replaced with an artificial tooth connected between two crowns (caps) which are permanently cemented or bonded on the adjacent teeth.