If you don't know the fluoride level of your water, contact your local water department. The Decay Process Brushing after meals and snacks is one of the best ways to remove sugars and food particles from tooth surfaces. The decay process begins when the bacteria that are always present in the mouth break down components of saliva. These components adhere to tooth enamel. This is the start of dental plaque.
Dental plaque is a clear, gelatinous material that allows bacteria to remain on the teeth.
This is why frequent visits to a dentist and regular, thorough cleaning by a dental hygienist is very important. Inside this dental plaque, the bacteria ferment dietary carbohydrates for a food source. This fermentation produces lactic and other acids. These acids demineralize the tooth enamel. As the tooth demineralizes, bacteria move into the tooth, decay begins and a cavity is formed.