Since mercury is commonly used in dental fillings, how does less toxic tooth-colored composite filling compare in terms of durability/longevity?



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    The amalgam fillings, which often have mercury in them, are long lasting and fairly durable and dentists argue that the mercury is not a problem.  Still, it is disconcerting to have mercury in your mouth, they are more obvious than tooth-colored fillings, and they require more drilling.  Composite fillings bind to your teeth so they are more resistant to tooth fracture but generally last slightly less long – although the difference is becoming less and less with advancements in dentistry.  Most dentists seem in favor of the composite.

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