摘要:
The present invention provides a composition for preventing or treating periodontal diseases comprising an extract of Achyranthis radix, Ulmus cortex or a mixture thereof which inhibits the productions of superoxide, prostaglandin, and interleukin (IL-1.beta.) which are inducers for periodontal diseases and inhibits the enzyme activity of collagenase which decomposes collagen protein which is a substrate for the periodontal tissues, and at the same time promotes collagen protein synthesis, thereby treating periodontal diseases efficiently.