Patient S., 57 years old, came to the clinic with complaints of burning and pain in the tongue, a sensation of "red pepper" after re-manufacturing of removable lamellar dentures. Objectively: in the oral cavity there are complete removable lamellar dentures in the upper and lower jaws, hyperemia of the mucous membrane in the area of the prosthetic bed in the upper jaw with clearly defined boundaries, imprints of teeth on the tongue and buccal mucosa, smoothness of the papillae of the tongue, the prostheses were made 3 years ago.

1Specify the possible causes of this pathology.

2. Make a preliminary diagnosis.