12 dental students rinsed in an individually randomized sequence twice daily for 4 days ( monday to friday ) with viadent containing 0.03 % sanguinaria extract ( 0.01 % sanguinarine chloride ) and a 1000 ppm concentration of zinc ions ( zncl2 ) , 2 x 30 s x 10 ml ;
C0043481
zinc
C0078774
zncl2