Occlusion use dictates crown material choice. Space ability, use of the crowned tooth, and oral space are all factors in the choice of material.
Crowns, also referred to as caps, are constructed from porcelain, gold, or a porcelain coated metal. Porcelain or a combination is the most common choice due to durability. Aesthetics of porcelain is also a reason it is a common choice, as the porcelain can match tooth color easily.
Preparation of the affected area is important for the success of a crown. Porcelain crowns require a certain amount of space around the tooth so that the cap is secured properly.
Another problem with merged material caps is gum reduction due to age. At times the metal may become exposed as gums recede. Porcelain only caps do not have the core to be exposed, so this gum reduction does not risk exposure. Ideally, the crown will be for aesthetic, rather than utilitarian purposes, so an all porcelain crown can be chosen.
Usually only two visits to the dentist will finish the crowning process. On the first visit, the dentist will prepare the tooth and place a temporary crown. The second visit will see the permanent, customized crown cemented. Partial dentures can also require need crowns in placed for anchoring purposes. Filing down healthy teeth for crown spacing may also be required.
