- Dec. 1911
- Osaka Dental School established in Ono, Nishinoda, Kita-ku, Osaka
- Oct. 1913
- Affiliated hospital founded in Fukushima, Kita-ku, Osaka
- Jun. 1915
- Affiliated hospital relocated to Kizu Daikoku-cho, Minami-ku, Osaka
- Jan. 1919
- Affiliated hospital newly built in Karasugatsuji, Tennoji Ward, Osaka
- Sept. 1935
- Affiliated hospital relocated and newly constructed in Kyobashi, Higashi-ku, Osaka
- Jul. 1951
- Extention of affiliated hospital
- Apr. 1960
- Extention of affiliated hospital
- Apr. 1978
- Extention of the G building of affiliated hospital
- Mar. 1997
- Affiliated hospital newly built