Crowns are dental restorations other wise known as "caps" which are coverings that fit completely over a tooth. Crowns in general add a good deal of strength to weakened or worn teeth as well as improve its appearance, shape and alignment.
A dental crown may be needed when at least one of the following occurs:
A dental bridge is a false tooth which is fused between two crowns to fill an area left by a missing tooth. This procedure is one of the many cosmetic options used to replace one or more missing teeth. If spaces are left unfilled, they may cause the surrounding teeth to drift out of position. Additionally, spaces from missing teeth can cause your other teeth and your gums to become far more susceptible to tooth decay and gum disease.