Dental Crowns
For teeth that are badly damaged, dental crowns can be an effective treatment option. The dental crown procedure utilizes tooth-shaped coverings made of metal, ceramic, or porcelain to restore strength and eliminate discomfort. In addition, dental crowns may be used to anchor a dental bridge or to cap a dental implant post.
Types of Dental Crowns
Dental crowns are made of metal, ceramic, or porcelain fused to metal. The type of crown utilized during your dental crown procedure will depend on your unique needs and goals, as well as the recommendation of your dentist.
Metal Crowns
Although their metallic color makes them a poor choice for highly visible teeth, dental crowns made of metal can be an ideal option for repairing decayed or damaged back teeth. They are extremely durable and can be applied with less removal of the natural tooth than all porcelain or ceramic crowns. Metal crowns may consist of various materials, including gold alloy, palladium, nickel alloy, or chromium alloy.
All Ceramic Crowns
All ceramic crowns may be made of porcelain, resins, or dental ceramic materials. They create an extremely natural-looking appearance and are typically used on front teeth. The tooth-colored ceramic material is translucent, like the enamel of your natural teeth, and size and shade can be carefully matched to complement the rest of your smile. However, ceramic dental crowns are not as resilient as metal crowns and do not function as well on back teeth, which sustain a lot of pressure from biting and chewing.
Porcelain Crowns
Dental crowns made of porcelain fused to metal are stronger than all-ceramic versions and more aesthetically pleasing than those made of metal. However, their metal shell gives porcelain fused to metal crowns an opaque appearance. Because they lack the reflective quality of natural teeth, porcelain fused to metal crowns are not as discreet as all ceramic crowns. Additionally, over time, a thin metal band may be visible along the gum line with this type of crown.
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The Dental Crown Procedure
Typically, the dental crown procedure is completed in two stages. During the first stage, the dentist removes portions of your natural tooth’s structure to accommodate the dental crown. Surrounding teeth may also be prepared in this way. An impression is made and sent to the lab, where your dental crown is created in about two weeks. A temporary crown will be in place between visits to ensure the most natural look and feel. When you return to the dentist’s office, the temporary crown is removed and your new, custom dental crown is securely bonded in place.
For some patients, the dental crown procedure is altered to meet specific goals. For example, if crowns are being utilized to anchor a dental bridge or as a dental implant restoration, the steps in the dental crown procedure will be slightly different. Also, teeth with extensive damage may require that a root canal be performed prior to placing the crown. Additionally, new technology has made it possible to complete some dental crown procedures in a single office visit. A consultation with your dentist can help you better understand the unique steps in your dental crown procedure.
Replacing Old Dental Crowns
Individuals may be interested in replacing old dental crowns for a number of reasons. Concerns about the appearance of metal crowns on prominent teeth may compel some patients to have their dental work restored with all ceramic or porcelain crowns. Other times, dental crown problems like wear, decay, or poor fit may lead patients to inquire about replacing older dental crowns. Typically, patients should expect to replace their dental crowns after approximately 10 to 15 years.
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