Another important factor that can effect your risk of developing tooth decay or acid erosion is decreased salivary flow. A lot of patients may not realise that numerous routinely prescribed medications, have as a side effect, a reduction in their salivary flow. Recreational drugs can have a profound effect on salivary flow as well. In both cases, this reduction in flow diminishes the rinsing and buffering effect saliva has, with obvious results. It is important that you tell your dentist all the medications you are taking, and that you seek advice and treatment for a dry mouth. If you are temporarily experiencing a dry mouth, one way of stimulating saliva flow is to chew sugarless gum.