Expa-Syl Retraction Paste Capsule - Refill 20/PkExpasyl, an alternative to retraction cord, is a viscous paste used for all procedures requiring surrounding structures retraction including: impressions, seating of provisional use, fitting rubber dams, and restoring class II, III, and V cavities. Unlike cord, you need little or no pressure to apply Expasyl, which greatly minimizes the risk of rupturing the epithelial attachment and enhances professional use comfort. Expasyl is extruded directly into