Seniors often suffer from dry mouth. This is more than an inconvenience, says Mountain View, CA dentist Dr. McEvoy. This may seem like a minor inconvenience, but actually saliva contains calcium and phosphates that help protect teeth from weakness and decay. It’s not natural to suffer from dry mouth. It’s a condition most commonly caused by the side effects of medications. A dentist can recommend solutions ranging from a simple reminder, to drink more water, to recommending that the patient work with their medical advisor to explore alternative medication options.