What is a common complication seen in patients with Xerostomia?

Xerostomia, commonly known as dry mouth, is a condition characterized by a reduced flow of saliva. One of the primary roles of saliva is to help protect teeth and oral tissues. It provides lubrication, aids in digestion, and has antibacterial properties that help control the growth of bacteria in the mouth.

When saliva production is diminished, patients often experience an increased risk of cavities (dental caries) and oral infections. The lack of saliva means there is less neutralization of acids produced by bacteria after the consumption of food, leading to demineralization of tooth enamel and making teeth more susceptible to decay. Furthermore, the diminished environment impairs the body's ability to wash away food particles and bacteria, increasing the likelihood of infections such as candidiasis (oral thrush).

The other options presented, while they may occur in different contexts, are not directly tied to the primary complications resulting from xerostomia. For example, facial swelling can be related to various conditions affecting the glands rather than primarily xerostomia. Canker sores can have multiple triggers and are not a direct result of dry mouth, although discomfort from dry tissues may exacerbate their occurrence. Gingival hyperplasia is often associated with certain medications and conditions but does not typically stem from