Why do silver fillings start off light gray, but then turn dark,ugly,and shiny after 2 week?

No one noticed my filling for two weeks. Then, 10 people said in the last month, "I see you just got a big filling. tough luck!" (in my bottom 6 year molar, i got a full surface silver filling-my dentist only fills molars with silver). I didn't complain when my dentist filled it, but i didn't think it would turn so dark and ugly looking. And my dentist told me my tooth will eventually take on a grayish appearance,because the filling goes deep down to my gum. Is that how all of my teeth with fillings will look?

Why do silver fillings start off light gray, but then turn dark,ugly,and shiny after 2 week?
Anything less than fine silver tarnishes due to the other metals in the alloy (and I think dental silver is around 80% silver at best). You may want to talk to another dentist if yours only does metal fillings--there are new enamel (or porcelain--not exactly sure what it's called) fillings that don't require as much drilling (they stick to your teeth better) and are completely unnoticeable. They're a bit more expensive, but well worth it.
Reply:The silver tarnishes.
Reply:Get rid of them they have mercury in them which is poisoness and leads to alzimers disease