Dental crowns and dental bridges are used, respectively, to help repair seriously damaged teeth, and to replace missing teeth. Both are restorations help preserve the structural integrity of your smile.
A crown (or cap) is a covering that encases the entire tooth surface restoring it to its original shape and size. A crown protects and strengthens tooth structure that cannot be restored with fillings or other types of restorations.
A dental bridge is a non-removable dental appliance that is used to replace missing teeth. It is affixed to the natural teeth on either side of the gap, to help restore the function and aesthetic of your smile.