There is no perfect substitute for natural teeth healthy.
Decayed teeth require treatment with a filling (fillings) or other restoration depending on the severity of caries.
The filling may last many years before it has to be replaced, but the seals are exposed to constant pressure from chewing.
Clenching or grinding teeth also puts tremendous force on fillings and tooth enamel.
All this can make the seals are wear, chipping, crack or fall.
Over time, the edges of the filling can wear down or may loosen the seal surrounding enamel, leaving a very small space between the tooth and the filling.
This condition may allow bacteria to enter and cause decay in the margins (edges) of the filling.
Bacteria can not be removed once enter that space. Often the damage is not because there are no symptoms until the decay reaches the nerve of the tooth.
Poor dental hygiene or poor diet, gum recession or lack of saliva can contribute to tooth decay.
If no treatment is given to recurrent caries can progress from the enamel to the dental pulp, the living center of the tooth.
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