Active Plus - deep cleaning in just 3 minutes Deep clean in just 3 minutes: Steradent Active Plus removes stubborn stains and 50% more plaque than brushing alone. Steradent Active Plus has a fast reactive formula which kills 99.9% of bacteria for hygienically clean dentures. The formula will not cause damage to metal parts and is suitable for both full and partial dentures. With eucalyptus and menthol for fresh breath daily.