Sugar-Free Chewing Gum with Xylitol Happydent with Chlorophyll Flavor. The product contains 200 individually wrapped gums. Enjoy a chewing gum with a smooth and pleasant flavor. Not only is it delicious, but it also helps maintain a radiant smile and fresh breath. Sugar-free and with xylitol. Happydent is the classic brand of single-piece gums that contribute to oral hygiene. Chewing gum, if chewed for at least 20 minutes after eating or drinking, helps neutralize dental plaque acids. Happydent is individually wrapped and fits easily in any bag or pants pocket. Discover more about this and other Happydent products below.