How does toothpaste work in terms of neutralisation?

The toothpaste acts as an alkali against the acid produced by your mouth that coats your teeth. By applying the base (an alkali is a base that is soluble in water) to the acid, a neutralisation reaction occurs. Therefore, it will prevent your teeth from being eaten away by the natural acid produced by your mouth.">The toothpaste acts as an alkali against the acid produced by your mouth that coats your teeth. By applying the base (an alkali is a base that is soluble in water) to the acid, a neutralisation reaction occurs. Therefore, it will prevent your teeth from being eaten away by the natural acid produced by your mouth.