Can porcelain crowns be whitened?

[Dan 123]

Hello

I have two front porcelain crowns and I would like to have all of my teeth whitened including my porcelain crowns with teeth whitening gel or maybe zoom teeth whitening. Is it possible to whiten porcelain crowns with home or zoom teeth whitening?

[Dr Mohsen J. Esfahani]

No, porcelain crowns and veneers can not be whitened with home teeth whitening gel or zoom teeth whitening. You will need to whiten your other teeth and then change the porcelain crowns to new whiter shade porcelain crowns.