Dry mouth also known as Xerostomia can be related to multiple physical conditions or environmental factors. The basic cause is the salivary gland not producing enough saliva. Commonly dry mouth is the side affect of perscription medications &/or chemotherapy. It can also be associated with other medical conditions like Diabetes, Lupus or Sjorgren’s syndrome. A dry mouth can exacerbate periodontitis and increase the risk for tooth decay. While the treatment for dry mouth should depend on the cause, there are several OTC products available at most pharmacies that can be used to help relieve dry mouth: Biotene has a full product line from gum to toothpaste, Moi-Stir is an artificial saliva, Spry also has a full product line with 100% Xylitol an ingredient which studies show reduces the risk for tooth decay.