Crown

Crown is a type of dental restoration which completely caps or encircles a tooth or dental implant. Crowns are often needed when a large cavity threatens the ongoing health of a tooth. They are typically bonded to the tooth using a dental cement. Crowns can be made from many materials, which are usually fabricated using indirect methods. Crowns are often used to improve the strength or appearance of teeth.

Types of Crowns

There are various types of crowns, including:

• Porcelain-fused-to-metal: This type of crown provides a stronger bond than regular porcelain because it is connected to a metal structure. It's also extremely durable.

• Gold alloys: This type of crown is a mix of gold, copper and other metals. In addition to providing a strong bond to the tooth, gold alloys don't fracture or wear away the tooth.

• Base metal alloys: This type of crown is made from non-noble metals that are highly resistant to corrosion, and make for a very strong crown.

• Ceramic or porcelain: These types of crowns provide the best natural color match than any other crown type. They are also a good choice for people with metal allergies.

Procedure

The procedure for placing a crown involves a number of steps, including:

• Exam and preparation: Initially, the dentist may take a few X-rays to check the roots of the tooth receiving the crown and surrounding bone. If the tooth has extensive decay or if there is a risk of infection or injury, a root canal treatment may be performed first.

• Impression creation: To make the impression, the dentist will fill a tray with a soft paste that will harden around your tooth and gumline.

• Crown placement: Once the crown is ready, the dentist will position and fasten it to the tooth with a special adhesive.

Risks

While crowns and bridges are an effective solution for many dental problems, they carry some risk. Potential problems with crowns include:

• Tooth decay: If the crown isn't fitted properly, decay can begin underneath it.

• Allergic reaction: Some people may have an allergic reaction to porcelain or one of the metals used to make the crown.

• Gum disease: If you don't maintain good oral hygiene, you could develop gum disease around the crown.

Maintenance

With proper care, a good quality crown could last up to eight years or longer. It is very important to floss in the area of the crown to avoid excess plaque or collection of debris around the restoration.

Crown Resources
Latest articles Most recent articles Ongoing trials	Wikipedia