Takashi Ono is Professor and Chairman of the Department of Orthodontic Science, Graduate School Tokyo Medical and Dental University (TMDU), Tokyo, Japan. He studied at TMDU, the University of British Columbia, Canada and the University of Copenhagen, Denmark. Prof. Ono worked and has been working as an Adjunct/Visiting Professor at 6 domestic and 5 international universities. He also serves as an editorial board member for 12 international peer-reviewed journals. He has published 11 book chapters and 271 scientific articles and has been invited extensively for lecturing nationally and internationally. Prof. Ono is a recipient of IADR/AADR Williams J. Gies Award in 2018, SIDO Anthony Gianelly Award and Honorary Membership of Taiwan Association of Orthodontists in 2020. He has been appointed as Chairman of the 9th International Orthodontic Congress (IOC) in 2020, and is currently a member of the Executive Committee of the World Federation of Orthodontists (WFO).