Where does failure most commonly occur when a prosthesis cemented with zinc polycarboxylate cement becomes dislodged?

Show Answers

At the junction between the cement and the toothAt the bond between the cement and the prosthesisWithin the cement layer itselfDue to breakage of the tooth or the prosthesisAt the interface of the oral mucosa and prosthesis

Explanation

When a prosthesis cemented with zinc polycarboxylate cement fails during dislodgement, the separation typically happens at the interface between the cement and the prosthesis rather than at the tooth-cement interface or within the cement layer.