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NEBDN OSCE Practice Exam

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Which tool is used to punch holes in the rubber dam sheet for teeth to isolate?
Correct Answer:
Rubber dam punch
Explanation:
Punching holes in the rubber dam sheet is done with the rubber dam punch. This instrument is designed with a die plate that creates clean, round openings in the dam that match the teeth you plan to isolate. Using the correct punch ensures the holes are evenly sized and properly spaced, which helps the dam fit snugly around each tooth and provides an effective seal against saliva. The other tools have different roles and don’t create the holes: a slow straight hand piece is a drill used for cutting or shaping tooth structure, not punching dam holes; a rubber dam frame holds the dam taut and provides a stable surround but doesn’t make holes; and a rubber dam clamp anchors the dam around a tooth during placement, again without punching holes.

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