Three weeks after delivery of a unilateral distal extension mandibular removable partial denture, a Pt complained of
A- sensitive abutment tooth, clinical examination reveals sensitivity to percussion of the tooth, the most likely cause is:
a. Defective occlusion. ***
b. Exposed dentine at the bottom of the occlusal rest seats.
c. Galvanic action between the framework and an amalgam restoration in the abutment tooth.
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