Mayo Clinic (9/23, Sparks) provided information on halitosis, which can be caused by several factors, such as bacteria, dry mouth, food, and medical conditions. To treat halitosis, the article recommended people brush their teeth and tongue, floss daily, drink water, make dietary changes, replace toothbrushes every three to four months, and schedule regular dental visits.

The Oral Health Topics on ADA.org and MouthHealthy.org provide additional information on xerostomia for dental professionals and for patients. MouthHealthy.org provides additional information for patients regarding halitosis.