A kit for promoting oral hygiene, and a method for using such a kit are disclosed. The kit may comprise several compositions or a single composition, each of which comprises an effective amount of xylitol. For example, the kit may comprise a chewing gum composition, a morsel composition, a paste-like composition, and an oral rinse composition; or any one of the above compositions; or any combination thereof. It will be appreciated that a novel method for using such a kit for promoting oral hygiene may include: brushing a user's teeth with the paste-like composition comprising at least about 0.05 g to about 0.75 g of xylitol at least in the morning and in the evening, administering at least about 0.75 g of xylitol after consumption of nutrition by chewing a gum composition or by partaking of a morsel composition, and rinsing the user's oral cavity with an oral rinse composition comprising at least about 0.75 g of xylitol at least before bedtime.