What Is Tooth Decay?


By Brandie Umar, Executive Director of ContentLast modified: October 11, 2011

What Is Tooth Decay?

Tooth decay is caused by demineralisation of tooth enamel. As teeth loose the minerals that strengthen the enamel, the enamel thins causing cracks and cavities.

Excess bacteria inside plaque that builds up inside the mouth and on tooth enamel destroys the protective surface of teeth by dissolving the calcium in tooth enamel. Teeth that are cracked or have fine defects in the outer surface are more likely to be affected by tooth decay.

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