Prosthodontics & Occlusion · patient case question
What is the most likely diagnosis for the palatal erythema?
Patient case: Three Weeks Into New Complete Dentures
Patient: 62-year-old female
Chief Complaint: “My palate burns, and I whistle when I talk.”
Background: Edentulous for 6 years. New maxillary and mandibular complete dentures delivered 3 weeks ago. She wears them 24 hours a day and has not been removing them at night. Type 2 diabetes, well controlled.
Medications: Metformin 1000 mg twice daily
Vital Signs: BP 128/76 mmHg · HR 74 bpm · RR 16 · T 98.4°F
Findings: Diffuse bright erythema of the palatal mucosa conforming precisely to the outline of the maxillary denture base, with sharp demarcation at the denture border. Maxillary anterior teeth appear prominent; she cannot produce clear “f” and “v” sounds. Small, firm, smooth, immobile sessile nodules on the lingual aspect of the mandibular alveolus bilaterally, covered by normal-appearing mucosa, which she reports have been present “for as long as I can remember.”
Show answer and explanation
Correct answer: B. Candida-associated denture stomatitis
- A. Incorrect. Nicotinic stomatitis is a smoker’s lesion of the hard palate, appearing as diffuse white keratosis with red punctate duct openings. She is not described as a smoker, and the color pattern is opposite.
- B. Correct. Erythema conforming exactly to the denture-bearing area, in a patient wearing the prosthesis continuously, is the defining presentation. Continuous wear creates a warm, anaerobic, low-oxygen microenvironment that favors Candida colonization. Diabetes adds further susceptibility.
- C. Incorrect. Erythroplakia is a solitary, well-defined red velvety patch that cannot be attributed to any other cause. It carries a very high risk of dysplasia. The distribution here matches a prosthesis exactly, which explains it fully.
- D. Incorrect. True acrylic monomer allergy is rare, and would produce symptoms almost immediately after delivery rather than developing over 3 weeks. Testing would be needed to confirm it, and it remains a diagnosis of exclusion.
Note: Treatment is threefold: remove the denture at night, disinfect the prosthesis itself since it harbors the organism in its porosities, and use antifungal therapy. Skipping denture disinfection is the most common reason for recurrence.
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