Dental crowns are restorations that completely cover an existing tooth. Crowns are used to rebuild broken and decayed teeth, strengthen teeth, or to improve the cosmetic appearance of a tooth.
Types of Crowns
Metal Crowns are very durable and last longer than other crown types. Wear to opposing teeth is kept to a minimum and less tooth structure needs to be removed to prepare for placement of these crowns. The drawback is the metallic color. They are a good choice for back teeth (molars) that are not highly visible. Metals used in crowns are gold, alloy, or other types of alloys including palladium or nickel.
Porcelain/Ceramic Crowns provide the best natural tooth color match compared to any other crown type and may be more suitable for people with metal allergies. However, they are not as strong as porcelain-fused-to-metal crowns. They also wear down opposing teeth a little more than metal or resin crowns. All-ceramic crowns are very aesthetically pleasing and are a good choice for front teeth.
Porcelain-Fused-To-Metal Crowns like porcelain crowns can be color matched to your adjacent teeth and look most like your natural teeth. The addition of the metal creates a stronger and more durable crown. In some instances, especially in the case of a receding gum line, the metal underlying the crown’s porcelain can show through as a dark line. These crowns can be a good choice for front or back tooth placement.
Temporary crowns are used to protect a tooth prepped for a permanent crown while you wait for it to be made at the dental lab. If left uncovered you could experience pain, sensitivity, damage to the periodontal tissues, and possible shifting of the prepped tooth. The temporary crown resembles your natural teeth so that you can continue with your daily life without worrying about a missing or incompatible tooth. It is placed using a temporary cement so you must take care to avoid flossing, chewing gum, or eating sticky hard food while wearing the temporary crown.