Is discoloration normal for gold crows and what would cause them to change colors?

Question

I got a gold crown 4 months ago and it looks dull as if it is tarnishing. I have other gold crowns and they are shinny as ever.

Barry Jason, DDS · Answer

Gold crowns do not cause discoloration unless there is a high acidic content to your natural saliva.  However since there has been no reaction previously to your other gold crowns....you must question the actual content of the new one. If you paid for gold at the present rate of well over a thousand dollars an oz.for 24kt ( dental gold is usually 12-18 kt. and gold is somewhere around $1500/oz for 24kt) you must ask your dentist if you paid for gold or just yellow alloy metal.  Sorry i can't be more specific.

Thomas Roberts, DDS (retired) · Answer

Gold does not tarnish so if it is changing color it may not be gold.  Have a talk with your dentist to see what is going on.  I am sure there is a simple explanation.  Good luck!

Is discoloration normal for gold crows and what would cause them to change colors?

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How can we change the shade of the crown which is permanently cemented, without removing it?

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