Abstract: The present invention relates to a composition for preventing or treating periodontal diseases comprising a Bacillus velezensis strain, or a culture medium or culture supernatant thereof as an active ingredient, and more particularly, to a pharmaceutical composition for preventing or treating periodontal diseases or halitosis comprising a Bacillus velezensis strain, or a culture medium or culture supernatant thereof as an active ingredient, and a quasi-drug composition, a health functional food composition and a food composition for preventing or improving periodontal diseases and halitosis comprising a Bacillus velezensis strain, or a culture medium or culture supernatant thereof as an active ingredient.

Abstract: The present invention relates to a Bacillus subtilis ID-A05 strain and a composition including same, and more specifically, to: a novel Bacillus subtilis strain effective for both treating cavities and periodontal diseases and alleviating halitosis; a culture medium of the Bacillus subtilis strain; a culture supernatant of the Bacillus subtilis strain; a pharmaceutical composition for treating cavities and periodontal diseases, the pharmaceutical composition containing, as an active ingredient, the Bacillus subtilis strain or a culture medium or culture supernatant thereof; a quasi-drug composition for preventing or alleviating cavities, periodontal diseases, and halitosis, the quasi-drug composition containing, as an active ingredient, the Bacillus subtilis strain or a culture medium or culture supernatant thereof; a health functional food composition; and a food composition.

Abstract: The present invention relates to novel Bacillus velezensis strains ID-A01, ID-A02, ID-A03, and ID-A04 and use thereof, and more particularly, to novel Bacillus velezensis strains with all effects of treating cavities and periodontal diseases and improving halitosis, culture media of the Bacillus velezensis strains, culture supernatants of the Bacillus velezensis strains, a pharmaceutical composition for treating cavities, periodontal diseases or halitosis comprising the Bacillus velezensis strain, or a culture medium or culture supernatant thereof as an active ingredient, and a quasi-drug composition, a health functional food composition and a food composition for preventing or improving cavities, periodontal diseases or halitosis comprising the Bacillus velezensis strain, or a culture medium or culture supernatant thereof as an active ingredient.