Why do filling break down?

Question

Why do filling break down?

Answer 1

it s like anything else, after awhile all the wear and tear on it breaks it down, just go back to the dentist to have it repaired.

Answer 2

Amalgams tend to break down due to what is called leakage. Unlike the white fillings, these fillings are mechanically boded to the tooth, not chemically. Although they last longer, silver fillings will leave a metal like taste when they begin to breakdown. The white fillings are boded with chemicals making it less likely for leakage, but more susceptible for stain and chipping.

Answer 3

filling can be  amalgam or composite or gic etc

        amalgam tends to break due  to either inappropriate  cavity preparation or faulty manupulation of amalgam , inappropriate contouring ,larger restorations,microleakage

for composites inadequate bondig due to improper curing, in areas of high occlusal stress.

gic restorations  also break due  to improper manupulation or adhesion.

Answer 4

Because thats the only job I could get!