Whitening my front 6 Crowns, how do labs accomplish this on something that is supposed to be color stable?

i just went to the dentist today to put on 6 crowns on front teeth. My dentist used temporary cement and said he can send them back the crowns for all types of adjustments, including making them a shade or 2 whiter if i desire. I am thinking about doing this, but it doesn't make sense to me that a crown can go to a lab and come back whiter, how do the labs accomplish this on something that is supposed to be color stable?

Doctor Answers 3

Whitening my front 6 crowns before they are permanently cemented

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Depending on what type of crowns you are having made, the laboratory can make minor changes to the color and shape of the porcelain. Most cosmetic dentists will only place all ceramic crowns on front teeth. These crowns are made a couple of ways. 

The first and most popular method is called pressable ceramics and Emax is the standard material for these crowns. Usually the porcelain is made a lighter shade and then staining is added to give the crown a more natural appearance. If your looking for a whiter shade, the staining can be removed which will make the crowns look whiter. 

The pressable ceramic crowns are also made another way by layering the porcelain in a process called a cut back technique. These crowns are first pressed and then porcelain is stacked on top to give more depth and natural appearance. The crowns are more natural looking than the ones that are stained. If you feel that the crowns should be whiter, the lab can remove some of the stacked porcelain and re-stack it with a lighter shade.

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Dental crowns

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Normally the lab would remove the surface layer of the porcelain and replace it with a lighter shade porcelain. This is an easy and common lab procedure. 

Whitening Crowns

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That's a great question. The only way to whiten already made crowns is to remove porcelain from the crowns and replace it with a lighter shade of porcelain. There is no magic crown whitening formula. 

These answers are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.