Which item is used to retract gingival tissue during impression taking?

• A. Crown remover
• B. Retraction cord
• C. Spatula
• D. Clear matrix

Answer: (B)

Retracting gingival tissue during impression taking is about exposing the tooth margin so the impression material can capture a precise finish line. The item used for this is the retraction cord. It is placed into the gingival sulcus around the tooth and gently packed with a cord inserter, pushing the tissue away and often containing a hemostatic agent to control minor bleeding. This creates a clear space for the impression material to flow into and record the margin accurately, preventing extrusion of tissue into the impression and reducing the risk of a poorly defined finish line. The other tools don’t serve this purpose: a crown remover is for removing restorations, a spatula is used to place or mix impression material, and a clear matrix is used to form a temporary wall or guide for restoration rather than to push back gingival tissue.