Sugarfree Chewing Gum with sweeteners and mint flavours. We all brush our teeth in the mornings: but when we eat throughout the day, plaque acid levels increase. Chewing Wrigley¿s Extra sugarfree gum helps to neutralise plaque acid and helps keep your teeth clean and mouth fresh after meals and snacks. Available in a variety of refreshing minty flavours and pack sizes. Whatever you eat, chew Extra.