Tooth decays are small holes in a tooth through which bacteria have managed to enter and deteriorate the pulp inside, generating large internal craters until they reach the root of the tooth...
We have bacteria and sugars or starches that in combination form dental plaque. Then the bacteria are converted into acids, favoring growth, and it begins to wear down the external surface of the teeth
Demineralization This occurs with the exposure of enamel to acids produced by bacteria.
Deterioration of the enamel After the white spots appear, demineralization continues and holes (caries) can be seen in the teeth.
Deterioration of the dentin When caries have penetrated deeply, it reaches the dentin under the enamel. Pain may already be present at this stage.