Dr. Nagai is an Associate Professor at Harvard School of Dental Medicine, with a focus on prosthodontics and esthetic dentistry. She earned her DDS and PhD from Iwate Medical University and a master's degree in biomaterials from Boston University. She served as Director of Clinical Research, DMD-Prosthodontics, and Advanced Dentistry. She leads the Nagai Lab at Harvard, and has authored more than 97 peer-reviewed publications and numerous awards.