What condition refers to abnormal dryness of the mouth due to decreased salivary gland function?

The condition characterized by abnormal dryness of the mouth due to decreased salivary gland function is known as xerostomia. This term specifically refers to the subjective sensation of dry mouth, which can result from various factors, including medications, autoimmune disorders, and salivary gland dysfunction. Individuals experiencing xerostomia may find it difficult to swallow, speak, or taste food, and may be at an increased risk for dental issues due to reduced saliva, which normally helps wash away food particles and bacteria.

Halitosis refers to bad breath, which is not directly related to salivary function. Dysphagia refers to difficulty swallowing and is a separate condition that can occur for various reasons, including neurological or muscular issues. Stomatitis involves inflammation of the mucous membrane in the mouth, which can cause sores or discomfort, but does not specifically denote dryness. Thus, the term xerostomia best describes the condition of dry mouth resulting from decreased salivary gland activity.