What condition is indicated by pain on swallowing when a removable partial denture (RPD) is removed?

Pain on swallowing when a removable partial denture (RPD) is removed can indicate RPD lingual impingement. This condition arises when the denture is improperly designed or seated, causing it to exert undue pressure against the lingual (tongue side) tissues. This impingement can lead to inflammation or irritation, making swallowing painful.

When the denture is removed, the tissues may still be sensitive or bruised, leading to discomfort during swallowing. This suggests that the tissues were affected by the positioning and movement of the denture, hence the pain arises primarily due to the interaction between the denture and the soft tissues of the mouth, particularly under the area where the denture impinged on the lingual side.

Understanding this concept is vital for recognizing how denture fit and design can impact oral comfort and functionality. Proper assessment and adjustments can potentially alleviate the discomfort experienced during swallowing.