Causes of postoperative sensitivity with amalgam restorations include all of the following except _____.
The primary causes of postoperative sensitivity for amalgam restorations are voids (especially at the margins), poor condensation (that may result in a void), or inadequate dentinal sealing. Extension onto the root surface does not necessarily result in increased sensitivity.
Lack of adequate condensation, especially lateral condensation in the proximal boxes.
Voids.
Extension onto the root surface.
Lack of dentinal sealing.