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My amalgam fillings have changed colour from silver tone to a copper tone and some to a black tone. Why?

I have had some of these fillings for about 20 years. Are there any health concerns with this? What is the lifespan of the average filling? Might they need to be replaced?

Amalgam fillings change color over time. You will notice that newer ones are bright & shiny while the older ones look much darker. I have seen people that have amalgam fillings for 30 years or more, but I don't recommend them. Most dental offices now do composite fillings (tooth colored) & they look so much better (they are also better for your tooth!!). I have seen SO MANY times where silver fillings have decay under them. This is due to the fact that amalgam fillings are basically just shoved into the hole where the cavity was & there is a gap where the filling meets the tooth, letting bacteria to grow under them. The new composite fillings are bonded to your tooth, making the area nicely sealed. Silver fillings are also one of the number one reasons that teeth crack (they expand & contract in a way that your tooth can't handle). It is also almost impossible to see on x-rays if there is decay under the fillings, because the metal blocks out that area & you can't see the decay until it is large. The composite fillings are much better looking too.

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