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A 42-year-old member asked:

My dentist says you can't have a gold crown atop a tooth which has a silver filling since it creates a magnetic pull?

3 doctor answers6 doctors weighed in
Dr. Theodore Davantzis
Dentistry 41 years experience
Magnet, no: Galvanic action, possibly. There would be two dissimilar metals contacting each other, and with the salts in your saliva, you can have an exchange of ions, like a battery. Have your dentist explain this to you further and your treatment options.
Dr. Felicia Mata
Cosmetic Dentistry 26 years experience
Galvanic shock: Gives a sharp and jolting feeling due to electric current caused by these metals.
Dr. R Lee Hinson
Dentistry 39 years experience
Yes, the possibility exists for this phenomenon in some patients. However, it's fairly rare. Consider a ceramic crown to eliminate the possibiliy
Jul 20, 2013
Dr. Kenneth Grossman
A Verified Doctor commented
A US doctor answered Learn more
Also the amalgam filling can be replaced w a composite filling before placing a gold crown
Jul 20, 2013
Dr. Paul Grin
Pain Management 37 years experience
Trust your DDS: Gold crowns, on top of amalgam, create a permanent galvanic cell and compromise the outcome.

Similar questions

A 34-year-old member asked:

My dentist says you can't have a gold crown atop a tooth which has a silver filling since it creates a magnetic. Other opinions?

2 doctor answers3 doctors weighed in
Dr. Gary Sandler
Dentistry 55 years experience
My opinion\advice: Technically and theoretically, two dissimilar metals in the presence of saliva which is acidic may create a galvanic response causing some 'shock'. In reality, this has never been a problem for me or my patients. It can happen and is often mild and temporary. Other options are to replace the silver filling with a composite filling, or use a ceramic crown.
Last updated Oct 26, 2015

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