By Dr. Laura Kearney What is Dry Mouth? Dry mouth, also known as Xerostomia by its medical name, is exactly what it sounds like. It occurs when a patient’s mouth doesn’t have enough saliva to keep it wet. What Causes Dry Mouth? It may be caused by certain medications, salivary gland problems, certain medical conditions or continuous mouth breathing. Certain medications can cause a patient’s mouth to become extremely dry. Medical issues such as salivary… Read more »