Just wondering about something I heard at my dentist's office last week. I was told that metal fillings tend to expand - with time and due to constantly being in a moist "setting." As an effect of that expansion, teeth may crack.

So... maybe true, possibly myth?

If it is true, I want the metal out. I've alread had two teeth that have cracked.

Part of me thinks, my tooth-crackage could also be attributed to bone loss. But ... both happened like out of the blue; no symptoms or possible "warning" signs.

To go through the same redundantly when it may be preventable? I'd rather opt for replacing the fillings.

I really appreciate your info. and your insights.