Missing Tooth

Porcelain Veneers: a Popular Cosmetic Dentistry Option

Modern cosmetic dentistry offers a wide selection of options for today's consumers for enhancing their smiles. As an alternative to crowns, chipped or stained teeth can be effectively restored with porcelain dental veneers -- ultra-thin, custom-designed ceramic shells bonded to the front teeth.

A porcelain dental veneers can change a tooth's color, size or shape. They're ideal for a number of tooth restoration purposes:

• to mask severely stained teeth, such as from antibiotics;
• those with discolored fillings on front teeth;
• to repair crooked, chipped teeth;
• or for those with poor spacing or worn enamel.

Porcelain dental veneers have a good longevity record, lasting many years when properly applied.

About the Porcelain Dental Veneers Procedure

Porcelain dental veneers treatment requires a four-step process:

1. First, patients consult with the cosmetic dentist regarding the specific nature of the desired changes. It is possible that you and your dentist may want to view the expected final result. This can be accomplished by performing a "wax up" of your teeth on some impressions (molds) of your mouth. You may also view the expected result via a computer enhancement program.
2. During the next appointment, your teeth will be prepared for the porcelain dental veneers. They'll be lightly buffed to remove about 0.5 mm from the tooth's surface (which may require local anesthesia).
3. Next, an impression will be made of your teeth for customizing the porcelain dental veneers. This will be sent to a dental lab and used for creating a perfect fit. A temporary dental veneer might be applied at this time, if appearance is of special concern.
4. When the porcelain dental veneers are ready, the dentist will carefully attach them, adjusting the shade if needed. Once the dental veneers are cemented, color alteration is no longer possible. Dental cement is applied between the porcelain dental veneers and tooth. A "light" touch finalizes the process with a beam of light activating the hardening of the cement.

Once teeth have been veneered, they will require periodic treatment and regular visits to the dentist. The result is a beautiful and long lasting smile you will love!

By Brian J. Gray, DDS, MAGD, FICO

+Jim Du Molin is a leading Internet search expert helping individuals and families connect with the right dentist in their area. Visit his author page.

Do I Need an Extreme Makeover? Why Do My Dental Crowns Look Fake?

The most common complaint associated with crowns is that they look "opaque," "lifeless," and "fake" compared to natural teeth. Do you need an expensive dental makeover to solve the problem? No!

The appearance of a crown is affected by many factors, but ultimately, the final result is determined by how the crown reacts with light. Natural teeth have a high degree of translucency, which means a certain amount of light passes through the tooth. The result of this is that the tooth appears to have depth and vitality.

Porcelain Dental Crowns With a Metal Substructure

Traditionally, crowns are made of two materials:

• porcelain, which gives it the tooth-colored appearance
• metal substructure, which gives the crown its strength

Generally, it is this type of crown that can appear opaque. The reason for this is that while porcelain is very translucent and lets light travel easily through it, no light can pass through the underlying metal. In order to prevent the metal color from showing through the porcelain, which would make the crown seem dark or gray, the metal has to be "masked out" with an opaquing material. It is this masking or opaquing that can affect the final appearance, giving rise to the opaque or lifeless look.

Do All Porcelain Crowns With a Metal Substructure Appear Lifeless?

The answer is no. One thing that can be done to improve the appearance is to remove the metal margin that goes around the crown. By keeping the metal inside the crown and having porcelain at the junction between the crown and the tooth, the "black line" appearance at the gum line can be eliminated, thereby increasing the translucency in this area. It also is necessary to have an adequate thickness of porcelain over the metal substructure. If the metal that has been masked out is too close to the outer surface of the crown, the appearance of depth is lost. What it mostly comes down to, however, is the skill level and artistry of the technician who is making the crown. When done correctly, porcelain crowns with a metal substructure can give you the best of both worlds without the expense of an extreme makeover. They can be made to exactly match your other teeth while still appearing lifelike, and since there is metal in it, they have increased strength.

Dental Crowns

Today, there are dental crowns available that do not require a metal substructure and are made of only porcelain. Depending on the specific type, they get their strength either from the bond to the remaining tooth structure or from a dense tooth colored substructure. Since there is no metal, these types of dental crowns allow more light to pass through, which enables them to have more depth and vitality, much like natural teeth. So why isn't this type of crown used all the time? The main reason is that they are not as strong as crowns with a metal substructure. So, if a person grinds their teeth, these crowns have a greater risk of fracture. Another reason why an all-ceramic dental crown cannot be used in all situations is if the underlying tooth structure itself is dark. Very dark teeth are difficult to mask with these types of crowns because of their translucency. In these instances, the dark color may show through the crown. So, for situations where a lot of force will be placed on the teeth (such as grinding habits) or if a tooth is really dark, a well-made porcelain crown with a metal substructure may be a better restoration.

By Greggory Kinzer, DDS, MSD

+Jim Du Molin is a leading Internet search expert helping individuals and families connect with the right dentist in their area. Visit his author page.