Oral cancer accounts for just 2-4% of all cancers, but that number is on the rise. Because of the lack of pain associated with oral cancer, early detection and treatment plans are unfortunately rare. Gum disease is also often undertreated due to a lack of noticeable symptoms. Gum disease, if left untreated, can have a whole host of effects on your mouth and body — including the loss of your teeth. New research suggests that gum disease and oral cancer may be more related than we thought.