Dental cyst pathology
Invasive tumours in the jaw sinus can expand the jaw sinus in all directions, especially the image of a complete tooth or a brief clinging to a bone wall of the cyst.
An internal cyst containing a tooth arising from the Malassezia epidermal fragment remaining in the jaw sinus. Teeth cyst can be found in the upper jaw bone, encroaching into the jaw sinus.
The onset is never known because it causes no symptoms. When the tumour has developed, swelling the outer surface of the canine fossa, pressing hard, painless, normal mucosal skin, slowly progressing but growing, thinning and possibly loss of bone wall. Depending on the location, there may be different properties:
Canine area: the front of the jaw sinus is pushed up, causing surface deformation, showing signs of bobbing like table tennis.
Upper jaw area: root gums are pushed up, pressed on and off, the bone around the root is destroyed, causing teeth to be loose.
Jaw area of nasal fossa: frog jaw, bone is swelling and bobbing.
Although deformed but not painful, no fever, no inflammation.
X-ray: Invasive tumour in the jaw sinus can expand the jaw sinus in all directions, especially the image of a complete tooth or a summary clinging to a bone wall of the cyst.
Surgery removes the entire cyst.
If the cyst encroaches into the jaw sinus, need to open the nose-sinus and stitch the incision closed.
Results are usually good with less recurrence.