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What causes tooth Decay. The combination of bacteria and food causes tooth decay. A clear, sticky substance called plaque forms on your teeth and gums Plague contains bacteria As the bacteria feed on the sugars in the food you eat, they make acids
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The combination of bacteria and food causes tooth decay. • Aclear, sticky substance called plaque forms on your teeth and gums • Plague contains bacteria • As the bacteria feed on the sugars in the food you eat, they make acids • These acids attack the teeth within 20mins • Over some time the acids will destroy the tooth enamels causing tooth decay
Stages of tooth decay Stage 1- When we eat sugar and starch, plaque produces acid which attacks teeth.
Stage 2- Cavity (hole) develops and the acid attacks the dentine
Stage 3- Bacteria attacks nerves and blood vessels from soft pulp