After eating, plaque acid attacks your teeth and puts you at risk of tooth decay. This acid attack usually lasts about 20 minutes, but can last for up to two hours.
Saliva provides some natural protection against tooth decay by washing away the remains of food from the mouth and teeth, neutralising plaque acid and helping to repair the early stages of tooth decay.
One way to produce more saliva is to chew sugarfree gum, as this stimulates saliva by up to ten times the normal. To reduce the length of time the teeth are attacked by acid, sugarfree gum should be chewed as soon as possible after eating for at least 20 minutes.
Although everyone can benefit from chewing sugarfree gum, it is not recommended for children under the age of six.
Chewing sugarfree gum has been shown to help reduce tooth decay by up to 40%*.
*Szöke J, Bánóczy J Proskin HM (2001) Effect of after-meal sucrose-free gum-chewing on clinical caries. Journal of Dental Research 80(8): 1725-29