Kabushiki Kaisha Yakult Honsha

Kaoru Tochiya

Masahiko Ito

Kouji Miyazaki

Masumi Nakao

Takekazu Okumura

Tomohiko Terai

Susumu Imai

Yoshiaki Nomura

Kimiyuki Kaneko

Shunsuke Baba

Kazuaki Yamaji

Nobuhiro Hanada

Provided is a novel lactic acid bacterium strain which is capable of suppressing production of volatile sulfur compounds by oral bacteria, has no cariogenicity and no causative role in infective endocarditis, and is safe in an oral cavity, and provided is an agent for preventing, improving and/or treating oral diseases and discomforts by use of the bacterial strain. An agent for preventing and/or treating an oral disease, containing, as an active ingredient, at least one lactic acid bacterium selected from, andand having all of the following properties (1) to (6):

Prophylactic or therapeutic agent for oral diseases

Growing community of inventors

Kawasaki, Japan

Kaoru Tochiya