Before revision: History Listerine advertisement, 1932 Swedish ad for toiletries, 1905/1906 Sterisol mouthwash (1963) The first known references to mouth rinsing is in Ayurveda for treatment of gingivitis.
After revision: History Listerine advertisement, 1932 Swedish ad for toiletries, 1905/1906 The first known references to mouth rinsing is in Ayurveda for treatment of gingivitis.