PGCEE MDS 2022: Punched out lesions on the alveolar ridge is due to:

 # Punched out lesions on the alveolar ridge is due to:

a) acrylic nodules on tissue facing surface of denture

b) disturbed occlusion

c) overextended borders of denture

d) narrow occlusal table

The correct answer is A. Acrylic nodules on tissue facing surface of denture.

Acrylic nodules and spicules: These are produced by acrylic resin being processed into indentations or porosity in the cast. These areas of roughness can be detected by observation of the dried denture surface and by passing a gauze napkin or cotton wool roll over the surface so that the threads catch on the offending areas. They should be carefully removed with a stone without modifying the fit of the denture. Acrylic nodules on tissue facing surface of denture cause punched out lesions on the alveolar ridge or mucosa.