If small projections of impression material are found during a relining, what is the appropriate action?

When small projections of impression material are found during the relining process, the appropriate action is to trim these projections flush with the ridge. This is crucial for achieving a precise and accurate fit of the denture or prosthesis. Projections can interfere with the accurate seating of the appliance, leading to discomfort, improper occlusion, and potential complications in function. By trimming the excess material, you ensure that the relined area conforms properly to the anatomical structures of the dental ridge, facilitating proper function and aesthetics.

In contrast, leaving the projections as they are could lead to an ill-fitting prosthesis. Adding more impression material would not resolve the existing issue and could exacerbate the problem by creating further inaccuracies in the impression. Applying a sealing agent does not address the underlying problem of excess material and would not contribute to the effectiveness of the relining procedure. Therefore, trimming the projections is the best course of action to ensure a successful relining outcome.