A patient has been coming in multiple times for denture adjustments and now needs a new denture. There is redness along the major connector and surveyed crown margins. What is the MOST important next step when fabricating the new denture?

Correct answer: C. Contact the dental laboratory about the alloy content of the new denture

• A. Changing labs without specifying alloy requirements will not solve the problem if the same metals are used.
• B. Switching to a polyacid-base resin without confirming the allergy diagnosis and alloy content would be premature and may not address the actual cause.
• C. Correct. The pattern of redness specifically along metal components (major connector, surveyed crown margins) suggests a metal hypersensitivity/allergic reaction. The priority is identifying the alloy composition so the new denture can be made with a biocompatible alternative (e.g., titanium or high-gold alloy).
• D. Antifungal therapy is appropriate for candidiasis, not for contact hypersensitivity to metals.