She received her D.D.S in Biology in 1998 from the Nihon University School of Dentistry at Matsudo in Japan. A Ph.D. in Endodontics from the Graduate School of Nihon University was received in 2002. She also enrolled Advanced Education Programs in Endodontics in New York University College of Dentistry and finished in 2012. Dr. Shimizu worked as an Assistant Professor in Department of Basic Science and Craniofacial Biology in New York University College of Dentistry and identified interaction of ephrin-Eph plays an important role in tertiary dentin formation using various mouse models. In December 2016, she joined the Department of Oral Biology at Rutgers School Dental Medicine. Research Summary: