Count Blah never eats tuna fish,shark,swordfish,tilefish as these will give you as much mercury as a filling. Avoid aluminum too. NO FLU SHOTS.Blah
If the fillings can be removed without destroying the tooth that is a good option. If the tooth would be destroyed it might not be worth removing the mercury.Blah
The exposure during the removal is minimal and not the major factor to consider here. The other factors are how mercury sensitive and how good a mercury excreter is the individual but there is no way for you to tell these until troubles arise.Blah