A new metal-framework RPD delivered last week; patient returns with redness, soreness, and pain under the major connector. Most likely?

Correct answer: A. Allergic reaction to the metal frame

• A. Correct (per item). Localized erythema/soreness confined to tissue beneath the metal major connector shortly after delivery points to a contact/allergic reaction to the alloy (or, clinically, pressure/tissue trauma from the connector).
• B. Incorrect. Candidiasis (denture stomatitis) usually shows diffuse erythema under the entire denture-bearing acrylic, often with white plaques, not isolated to the metal connector.
• C. Incorrect. Herpetic stomatitis presents with vesicles/ulcers and systemic prodrome, unrelated to the new prosthesis location.
• D. Incorrect. Nicotinic stomatitis is a white palatal change from heat/smoking, not soreness under a connector.