Gingivitis is inflammation of gingiva induced by bacterial biofilm, plaque adherent to tooth surface. However, need for chemotherapeutic agents has been prompted by normal adult population's incapacity of performing proper brushing. chlorhexidine, phenols, cetylpyridium, triclosan, and tetracycline have been utilized in several forms like mouthrinses, toothpaste, local drug delivery etc. Market for herbal products in oral care is expanding. Camellia sinensis commonly called green tea have antiseptic, antioxidative properties and its aromatic constituents exhibit anti-inflammatory and antibacterial properties of green tea catechins at site of inflammation (epigallocatechin and epicatechin) have reported it to be efficacious and further eliminate foul breath by promoting anaerobic bacteria and stop producing volatile sulfuric compounds. In comparison to other mouthwashes, the purpose of this research was to assess existing data on effectiveness of green tea-based mouthwashes in treating dental plaque and gingivitis in systemic manner.