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CEREC ‘Same Day Crowns’: Blog#2

April 21, 2013

My last blog started to talk about CEREC crowns and restorations. In this blog I would like to get deeper into the subject and let you know why we at Framingham Family Dental Care are so excited about this wonderful technology.

Traditional “porcelain-to-metal” crowns use a build-up process. The laboratory technicians first create a thin covering of gold or metal to tightly cover the tooth. Then layer upon layer of porcelain is baked on top of the metal to create the correct shape of the tooth. This technique has many problems:

1. You can see a black line at the gum.
2 .The dentist needs to go under the gum to try to hide this black line.
3. The dentist has to attempt to mask the metal from showing through the porcelain. However, even the best crowns usually have a vague yellow tinge to them.
4 .Because the crown is built in layers, the porcelain can fracture over time.
5. Adjustments to the crown for comfort and to correct bite issues can weaken and thin the porcelain. This also increases the possibility of fractures.

CEREC technology overcomes all of these issues. The CEREC process uses pre-manufactured and baked solid porcelain blocks. No metal is used with CEREC. This means that your crown is true to color and reflects light just like a natural tooth! Because it is built from a solid block of porcelain, there are no layers to weaken o traditional r fracture over time. The porcelain is formulated to wear like your natural tooth structure. Some dentists actually believe this material is stronger than gold or metal. It is certainly stronger than the porcelain in traditional crowns!

Stay tuned for more information on CEREC in my next Blog! CEREC is a wonderful technology, and the more you learn about it, the more you will understand why we are so excited to be able to offer it to our patients!!

CEREC ‘Same Day Crowns’: Blog#1

February 18, 2013

CEREC ‘Same Day Crowns’ have been available at Framingham Family Dental Care for over a year. While this technology has been in development for at least 20 years, I was attracted to this ‘new’ technique by the vast improvements CEREC has made recently to their product, particularly in the wide range of new materials that the CEREC system has available to create beautiful, strong, and natural looking dental restorations.
So, why choose CEREC over traditional crowns? In the past, crowns were either made from porcelain baked onto metal or were made entirely of metal. To understand the benefits of CEREC, we need to know a little about these older crown techniques. Dentists have long talked about the ‘Gold Standard’. For centuries gold restorations were universally acknowledged to be the best for strength and longevity. The gold was cast in one piece so it never broke and was mixed with other metals to have the same attrition (wear) rate as natural tooth structure. However, while a few cultural groups have linked gold with wealth, most affluent societies wanted white, natural looking teeth. Hence, in the past fifty years or so, dentists started using all porcelain or porcelain over metal for crowns. Unfortunately, all porcelain usually proved to be too fragile, and porcelain over metal often creates an unappealing black line at the base of the crown.
Enter CEREC and the materials it uses. CEREC uses pre-manufactured blocks of ceramic that are formulated for durability and wear so they are as strong as metal and look and feel like your own teeth. And the CEREC technique has the ability to color-match the ceramic to create the most attractive and natural looking teeth imaginable.
CEREC crowns and restorations provide a huge improvement over previous techniques! But that is not all! I will get into “Why CEREC?” more in the next blog. Stay tuned!

434 Old Connecticut Path, Framingham, MA 01701 USA
Stanley J. Kass, DDS Framingham MA dentist (508) 626-2402 (508) 626-8130