A crown is a permanent covering that fits over an original tooth that is either decayed, damaged or cracked. Crowns are made of a variety of different materials such as porcelain, gold, acrylic resin or a mix of these materials. Porcelain generally has the most natural appearance.

What are Tooth Crowns?

Grinding your teeth, an improper bite, age, fillings and tooth decay can all be contributing factors in the wearing down, cracking or breakage of your teeth. Dental crowns cover the entire visible surface of your affected tooth and add strength, durability and tooth stability
What is the difference between a dental filling and a dental crown?
Whereas a filling covers only a portion of the tooth, a dental crown completely encases the visible area of the
tooth,creating a brand new outer surface for your tooth.

Who is a candidate for Tooth Crowns?

Grinding your teeth, an improper bite, age, fillings and tooth decay can all be contributing factors in the wearing
down, cracking or breakage of your teeth. Dental crowns cover the entire visible surface of your affected tooth
and add strength, durability and tooth stability.

Your cosmetic dentist will usually be able to spot problem areas in your mouth that might lead to tooth damage
and a need for crowns. Chewing patterns play a big role as well. By selectively grinding the tips of your
middle and back teeth (called cusps) will alter your bite to reduce the stress on at-risk teeth.

In other instances, crowns are used to replace a actual missing tooth. These crowns are anchored to the teeth
on either side, with a bridge section connecting the two crowns.
Instead of bridges, single tooth dental implants may be used that eliminate the need for supporting the crowns.

How are Tooth Crowns Attached to your Tooth?
Your cosmetic dentist will make an impression of the tooth and a dental laboratory will create the crown.
You will typically leave the office with a temporary crown to wear while the permanent crown is being
made - this takes about two weeks. The permanent crown is then cemented onto your tooth. Typically, only two
visits are required for this part of the procedure. Often, a preliminary restoration of your tooth may be needed
before a crown can be placed. To stabilize your tooth, a filling must first be put in place prior to placing a crown
due to the loss of original tooth structure. Tooth crowns usually last ten to fifteen years.

Be sure to discuss with your cosmetic dentist that the cement color used for your permanent crown will be the
same as used for your temporary crown. A try in paste is used for this purpose. The color of the cement does
affect the overall color of a porcelain crown, so this needs to be discussed long before your temporary crown is

In some cases your cosmetic dentist may choose to use a Flipper instead of a temporary crown.
A Flipper is a false tooth to temporarily take the place of a missing tooth before the permanent crown is placed.
A Flipper can be attached via either a wire or a plastic piece that fits in the roof of your mouth.
Flippers are meant to be a temporary solution while awaiting the permanent crown.

Is it possible for my dental crown to pop off?
Although unlikely, occasionally a dental crown will pop off, in which case the crown must be replaced immediately, due to tooth sensitivity and aesthetic appearance. In the case that this happens, please call your dentist immediately.

Will my dental crown look and feel natural?
A porcelain dental crown looks and feels exactly like a real tooth, so nobody, including you, should be able to tell the difference. If anything, your new dental crown will enhance the look of your smile.

Dental crowns offer a big advantage over dental fillings because they are fabricated "away from the mouth". As the dental crown is made in the dental laboratory, the technician can visualize and examine all aspects of bite and jaw movements, from a variety of angles, and sculpt the dental crown for a perfect anatomy. This ensures a great deal of accuracy for comfort and fit.

The treatment plan for a patient receiving a crown involves:  

When a tooth is fractured or has large old fillings,
It might need to replaced with a crown.
  First the doctor removes decay, and then shapes the
tooth so that the crown can be placed on top of it.
The doctor will take an impression of the new shape of
the tooth. That impression will be sent to a lab, where the permanent crown will be shaped.
  On a subsequent visit, you will have your temporary crown removed and your permanent crown placed.
Now you are on your way to a new and beautiful smile!
Numbing the tooth to remove the decay in or around it.
Re-sculpturing the tooth to provide an ideal fit for the crown.
Making an impression of your teeth in order to create a custom-made crown (usually takes two weeks).
Making a temporary crown out of acrylic resin and fitting it onto the tooth during the interim period when the permanent custom-made crown is being created.
Applying the permanent crown (when received from the lab) by removing the temporary crown and fitting the permanent one onto the tooth.
After ensuring that the crown has the proper look and fit, the dentist cements it into place.
This process generally consists of a minimum of 2-3 visits over a three to four week period.
Once the procedure is completed, proper dental hygiene, including daily brushing and flossing, is required to maintain healthy, bacteria-free teeth, gums and crowns. This helps in the prevention of gum disease. Given proper care, your crowns can last a lifetime.

Data Reference and Image Source : TeleVox

More dental crowns information  
A dental bridge crown (or pontic) is a custom-made false tooth or teeth,
that is permanently placed between two healthy teeth, filling in the area left by a missing tooth or teeth. The bridge is held in place by porcelain crowns placed on the healthy teeth on each side of space to be filled.
Bridges reduce the risk of gum disease, limit the shifting of remaining teeth, help correct some bite problems and help improve speech.

We fabricate dental bridges with frameworks that can be customized as per the customer's requirements. We provide dental bridges manufactured using high-grade ceramic, quality porcelain, porcelain-gold bonds and other strong materials. Our bridges are optimized to offer optimum biocompatibility & functionality while still being aesthetically pleasing.
A bridge may be necessary to prevent:
Shifting of the teeth that can lead to bite problems (occlusion) and/or jaw problems and resultant
periodontal disease.
Bridges safeguard the integrity of existing teeth and help maintain a healthy, vibrant smile.
There are two main types of bridges, namely:

Fixed bridge- this is the most popular and consists of a filler tooth that is attached to two crowns, which fit over the existing teeth and hold the bridge in place.
The Cantilever bridge is often used when there are teeth on only one side of the span. A typical three-unit cantilever bridge consists of two crowned teeth positioned next to each other on the same side of the missing tooth space. The filler tooth is then connected to the two crowned teeth, which extend into the missing tooth space or end.

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