A smile is your crowning glory. Dental crowns restore teeth to their original shape and size. They will improve the tooth’s appearance and make it stronger. When a tooth has a large filling, the crown is often used to ensure the filling stays in place. This is true of teeth that have a tiny bit of the original tooth left. When teeth are badly discolored or misshapen, a crown is an excellent option that an experienced dentist can give to their patient.