Features enhanced formula access, placement, and shelf life. Temporary calcium-hydroxide canal treatment paste for use between visits to prevent flare-ups and for extended treatment of complicated cases. Flexible, 27 Ga. x 1", double-sided endo irrigation needle with a vent on each side for easy canal access and visible, controlled placement. Enhanced formula will not clog needle. Closed end prevents extrusion beyond apex. ph12 to disinfect canal and prevent flare-ups.