By Dr. Manish Pandey, BDS, Dental Surgeon
A hard bump in the middle of the roof of your mouth may be a palatal torus (torus palatinus). This is a noncancerous growth of bone beneath the lining of the hard palate. It often develops slowly and causes no symptoms. Still, appearance alone cannot confirm what a lump is: ask a dentist to examine any new or changing bump.
What does a palatal torus feel like?
A typical palatal torus feels very hard, stays fixed in place and sits near the centre line of the hard palate. It may be smooth or slightly lobulated. The thin tissue over it can become sore if scratched by hard food or rubbed by a denture. Many people first notice the bump with their tongue or during a dental examination.
A soft, rapidly growing, bleeding or persistently painful lump should not simply be labelled a torus. The same is true of an ulcer that does not heal. Arrange a dental assessment so the cause can be identified.
Why does a bony bump develop on the roof of the mouth?
The exact cause of palatal tori is not established. Genetics and local mechanical factors may play a role, but having a torus does not mean you have done anything wrong. It is different from mandibular (lingual) tori, which arise on the inner side of the lower jaw, near the tongue.
How does a dentist diagnose it?
A dentist will ask when you noticed the bump and whether it has changed, then examine its position, firmness, surface and surrounding tissue. A typical torus can often be recognised clinically. Imaging or referral may be appropriate if the finding is unusual or another condition needs to be ruled out. Do not try to scrape, drain or remove a palatal lump yourself.
Does a palatal torus need treatment?
Usually not. If it is stable and does not interfere with daily life, your dentist may simply note and monitor it at routine visits. Removal may be considered when repeated trauma causes soreness, or when the torus prevents a denture or other appliance from fitting properly. An oral surgeon can explain the benefits, risks and recovery if surgery is being considered; removal is not automatically necessary because a torus is present.
What can you do if the area is sore?
Avoid repeatedly prodding the bump, and tell your dentist if a denture or appliance rubs against it. Have the appliance checked rather than trying to reshape it yourself. If the tissue has broken down or the soreness continues, book an assessment; a dentist can check for trauma and other causes.
When should you seek an examination?
See a dentist for any new lump on the palate. Seek prompt assessment if it grows quickly, changes colour, bleeds, becomes persistently painful, develops an ulcer or makes eating or swallowing difficult. These signs do not necessarily mean cancer, but they do need a proper examination.
Frequently asked questions
Is a palatal torus cancer?
No. A confirmed palatal torus is a benign bony growth. However, not every bump on the roof of the mouth is a torus, so a clinician should assess a new or changing lump.
Can a palatal torus shrink on its own?
A torus generally remains in place. Do not expect mouth rinses, supplements or home remedies to dissolve bone. Ask your dentist if it appears to change.
Will it affect dentures?
It can. A prominent torus may complicate denture fit or create a pressure point. Your dentist or prosthodontist can assess the appliance and discuss options.
References
- Cleveland Clinic: Torus Palatinus
- The tori of the mouth and ear: a review (PubMed)
- Surgical removal of a torus palatinus (PubMed)
Dental information only: This article cannot diagnose a lump or replace an in-person examination. If you have a new, changing or painful oral lesion, consult a dentist or qualified healthcare professional.