Discoloration of baby teeth occurs for many reasons. Lack of proper brushing or cleaning is one of the main causes for teeth getting discolored. Inadequate brushing allows bacteria to form and develop a plaque on the teeth.
You are more prone to dry mouth if you are nervous, upset or under stress. If you have a dry mouth all or most of the time, it could lead to serious health problems. This calls for immediate consulting from a doctor..