What Is A Dental Crown?

While cosmetic dental procedures are becoming increasingly common in North America, this is not the sole reason for relying on tooth crowns. Dental Crowns or teeth caps are all a way of helping preserve teeth.

Approximately 72% of all Americans have crowns or fillings.

In 2006, the American Academy of Cosmetic Dentistry (AACD), says their members performed 1.85 billion of these dental procedures!

This process has been going on for centuries. The two – esthetics and necessity have tended to intermesh since the Etruscans began making tooth crowns from ox bone, ivory, and human teeth.

Gold became popular and, over the centuries, the practice evolved. As the 18th century came to an end, people had become weary of ivory dentures.

French dentist Nicholas de Chemant addressed the need by creating porcelain teeth. This eventually led to the first porcelain jacket crown invented by Charles Land in 1905.

Late improvements produced porcelain-fused-to-metal crown first then all-resin crowns. Yet, what is a crown?

Dental crown

Crowns – A Description

Dental crowns are a manufactured dental appliance. Also known as “caps,” they act as a covering or restoration for a defective tooth. The placing of this device is always over top the original tooth, although crown is also a term applied to the covering of a dental implant.

The Purpose

Crowns serve two basic purposes. They act to help preserve, save or conceal a weak or destroyed tooth. A crown may also be added to improve the esthetic quality of the tooth becoming a part of a cosmetic dental surgery procedure. The utilization of a tooth cap, therefore, is practical but can also satisfy the perceived need to improve a smile.

Materials Used In Manufacture

Dentists have used several different types of material to create crowns. Among them are:

  • Gold – Used for centuries, this material is strong, durable and does not fracture. Unfortunately, it is not esthetically pleasing. As a result, dentists rarely use it
  • Porcelain – this is the most frequently used material. While susceptible to chipping, it does most resemble natural teeth. Yet straight porcelain is rare. Instead porcelain-fused-to-metal (PFM) is the preferred choice particularly for front and back teeth
  • Acrylic/composites – these most often are used for crowns topping denture implants. They are beneficial in cases of multiple tooth loss and/or extensive gum and bone loss. These crowns are easy to maintain but wear down
  • Zirconia - In a recent study in the Journal of Dental Research, the researchers, Y. Zhang, H. Chai, J. J-W Lee and B. R. Lawn, noted one “serious drawback of veneering porcelains is a pronounced susceptibility to chipping.” They suggested, instead, that an alternative could be “glass-infiltrated dense zirconia structures.” These are now capable of being esthetically pleasing. They are also more resistant to chipping - making them more durable

Longevity

When completed, dental crowns may last up to 30 years. It depends upon the care taken as well as the material comprising the crown. In general, the average life span is 10 years.

The Crowning Touch

A dental crown is one means of preserving a dubious tooth. If taken care of, tooth crowns can help us keep our teeth longer. Dental crowns also act as a means of improving our smile. Capping teeth or as part of an implant, they go a long way to helping us smile for years. In many instances, a tooth crown is truly a crowning touch.

Back to Cosmetic Dental Surgery from Dental Crown




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