**9. Acacia Arabica**

This evergreen tree is of medium height around 25 to 30 feet. It looks like a bush and is commonly foun in dry forest areas. This ayurvedic herb is great astringent and is equally useful as dentifrice, anti-hemorrhagic agent, and anti-diarrheal.A clinical trial was designed to evaluate the short-term clinical effects of Gumtone ,a commercially available gel containing Acacia Arabica in the reduction of plaque and gingival inflammation. Gumtone gel showed significant clinical improvement in gingival and plaque index scores as compared to a placebo gel. Gumtone gel was not associated with any discoloration of teeth or unpleasant taste (Pradeep et al 2010).
