As "sugary foods" and other carbohydrates are eaten, the PH drops. At a PH of 5.2 to 5.5 or below, the acid begins to dissolve the hard enamel that forms the outer coating of our teeth. Every exposure to these foods allows an acid attack on the teeth for about twenty minutes!
As the cavity grows, it invades the softer dentin directly beneath the enamel. Next it moves to the nerve and blood supply of the tooth contained within the pulp.
