Lingual tori almost always appear on both sides of the lower jaw at the same time.
Tori are slow-growing and vary in size. Most of them do not interfere with eating or speech. Many people have tori without knowing it. Your dentist may find a torus during an exam, or you might notice one on your own.
Many people who notice tori are concerned about oral cancer. Tori are not cancerous. They also do not turn into cancer. A torus is normal bone covered with normal tissue. However, other types of growths in the mouth can turn out to be oral cancer. You should have your dentist check any growths you find.
Tori also can interfere with dentures. Otherwise, there are no symptoms.