What effect do antihistamines have on dental treatment?

Antihistamines are medications commonly used to relieve allergy symptoms, such as runny nose, sneezing, and itching. They work by blocking histamine, a substance in the body that causes allergic symptoms. One of the side effects of many antihistamines is increased dryness in mucous membranes, leading to a condition known as xerostomia or dry mouth. This occurs because antihistamines reduce salivary flow, making patients more susceptible to issues such as dental caries, oral infections, and discomfort during dental procedures.

Understanding the tendency of antihistamines to cause xerostomia is crucial for dental professionals. This side effect may require specific management strategies in patients undergoing dental treatment, such as recommending saliva substitutes or encouraging increased fluid intake to alleviate dryness. In contrast, the other options listed do not accurately reflect the effects of antihistamines on dental treatment, as they do not promote salivary flow, gum health, or eliminate tooth sensitivity.