If dry mouth happens all or most of the time, however, it can be uncomfortable – and may have serious consequences for your oral health. Drying irritates the soft tissues in the mouth, which can make them inflamed and more susceptible to infection. Without the cleansing effects of saliva, tooth decay and other oral health issues become much more common. It is important that you take good care of your teeth and gums. Brush twice a day, and floss or use an interdental cleaner once a day to remove dental plaque and food debris from between the teeth where your toothbrush cannot reach.