chewing sugarfree gum
Saliva provides the body's own natural protection against tooth decay and gum disease. And, when saliva is stimulated by chewing, it has a much greater concentration of the minerals (e.g. calcium) which help repair teeth.
After eating, plaque acid attacks your teeth and puts you at risk of tooth decay. This acid attack can last for up to two hours. Chewing sugarfree gum can be a good way to produce more saliva as chewing can stimulate saliva by up to ten times. Stimulated saliva is more effective at replacing minerals lost through acid attach and helps reduce the risk of early decay damage.