Sugar and Acid
The bacteria in dental plaque feed on the sugars in your mouth to produce a mild acid. This acid attacks the hard outer layer of the tooth, called the enamel. When you consume sugary foods and especially when you sip on sugary drinks throughout the day your mouth is at increased risk to develop tooth decay.
Many foods and drinks also have high acid levels that can cause the protective tooth enamel to erode over time. The increased loss of enamel can lead to cavities and the inner layers of the tooth being exposed, increasing tooth sensitivity.
Sugary candies and cakes are not the only culprits. Foods that are high in carbohydrates also break down to sugars while items like bread can stick to your teeth. When you eat is also important. Avoid grazing on sugary foods (and drinks) throughout the day.
Soft drinks, sports drinks, alcoholic beverages and even fruit juice contain high amounts of sugar that cause damage to your teeth. But it's not just sugar-induced tooth decay that you have to worry about. All soft drinks—even the sugar-free ones—contain acid that erodes tooth enamel.
Chew on this! Each sip of pop causes an acid attack that will last 20 minutes, causing damage to your tooth enamel.