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saliva gradually neutralises the acids which cause the pH of the tooth surface to rise above the critical pH.
this causes 'remineralisation', the return of the dissolved minerals to the enamel.
if there is sufficient time between the intake of foods then the impact is limited and the teeth can repair themselves.
saliva is unable to penetrate through plaque, however, to neutralize the acid produced by the bacteria.
dental caries, also described as "tooth decay" or "dental cavities", is an infectious disease which damages the structures of teeth.
the disease can lead to pain, tooth loss, infection, and, in severe cases, death.
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