| 摘要 |
PROBLEM TO BE SOLVED: To provide an anti-dental caries agent that is inexpensively available and includes the substances safe to human bodies as active ingredients and further provide an anti-teeth-decaying agent that permits not only oral compositions, for example, a mouth-washing solution, to be formulated, but also can be formulated to foods and beverages as an food additive. SOLUTION: The objective anti-dental caries agent comprises, as an active ingredient, at least one extract from the whole glass bodies or the whole leaves selected from the group consisting of barrenwort, (Epimedium grandiflorum), beefsteak plant (Perilla frutescens crispa), ginkgo (Ginkgo biloba), Engelhardtia chrysolepis and bark of hamamelis (Hamamelis virginiana), particularly the extract from the fruits or the seeds is used as the active ingredient. An oral composition including the anti-dental caries agent is provided. |
