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Dental crowns

Dental crowns are permanent tooth covers that are cemented to chipped, cracked or broken teeth to improve their appearance and function.

I have dark stains at the gumline after porcelain crowns, can they be removed?

Kamini Talati (Port Saint Lucie, FL) on Oct 2, 2012
Are the crowns all porcelain or are they porcelain fused to metal crowns? If the crowns are porcelain fused to metal then a grey line will show that can not be removed. If it is your natural tooth that is dark due to stain then brushing with whitening toothpaste, or whitening may help.