Hsun-Liang Chan, DDS, MS, is Clinical Associate Professor and Assistant Program Director of the Periodontics Graduate Program in the Department of Periodontics and Oral Medicine at the University of Michigan School of Dentistry, Ann Arbor, MI, USA. He earned his DDS from Taipei Medical University, Taiwan in 2003 and his MS/Certificate in Periodontics in 2011 from the University of Michigan School of Dentistry with a prestigious award, Sigurd P. Ramfjord Award for Excellence in Graduate Periodontics.  He received several other awards from the American Academy of Periodontology (AAP), including Fellowship to the Institute for Teaching & Learning (2011), Abram and Sylvia Chasens Teaching and Research Fellowship (2011), Nevins Teaching and Clinical Research Fellowship (2013), Outstanding Teaching and Mentoring in Periodontics (2015) and AAP Sunstar Innovation Award (2018).

Dr. Chan limits his practice to periodontal and implant therapy. His main focuses in clinical research and patient care are development of innovative imaging technology, especially ultrasonography, minimally invasive regenerative approaches, e.g. microsurgery, and image-guided surgeries. To date he has authored approximately 100 peer-reviewed journal articles. 

Oliver D. Kripfgans, PhD, Dipl-Phys, is a Research Associate Professor in the Department of Radiology, University of Michigan Medical School, Ann Arbor, MI, USA. He holds further positions at the university as Research Associate Professor in the Applied Physics Program and Adjunct Research Associate Professor in the Department of Biomedical Engineering. Dr. Kripfgans gained his Diploma in Physics from the University of Saarland in Saarbrücken, Germany, in 1996 and subsequently earned his PhD in Applied Physics at the University of Michigan, where he also undertook postdoctoral training in therapeutic and diagnostic ultrasound. Dr. Kripfgans has been principal investigator on many research projects sponsored by NIH and other funding institutions. He is a Fellow of the American Institute of Ultrasound in Medicine and was a Board Member of the American Institute of Ultrasound in Medicine. He acts as an ad hoc reviewer for a number of journals and as a scientist reviewer for other bodies. He has been a lead or co-author on 109 peer-reviewed journal and proceedings articles.