Authors and Contributors


Kevin Montgomery, Ph.D.

CEO, Cofounder

Dr Kevin Montgomery is a cofounder of eHuman, and served on its Board and as VP of Engineering since its’ inception.

In addition, he is also a Senior Researcher at the Center for Innovation in Global Health at Stanford University and previously the Technical Director of the National Biocomputation Center, a collaboration between NASA and Stanford University to develop advanced technologies for next-generation medicine.  He regularly serves on review sections for NIH, NSF, DoD, and other granting agencies, serves on the program committees of several technical conferences, and advises and consults with several small, high-tech companies in the Silicon Valley.

Before joining Stanford, he led teams at the NASA Ames Research Center for biomedical imaging for space-related research. While at NASA, he developed and demonstrated the first live transmission of vital signs and video from a commercial aircraft, which earned the Smithsonian Award in 1998. Prior to joining NASA, he was a project leader at the Hewlett-Packard Company focusing on networking protocol design and implementation of a Microbial Identification System.

In addition to his academic position at Stanford, he is also an Adjunct Associate Professor of Research at the University of Texas Health Sciences Center- Houston and at the University of Hawaii. He has over 25 years of full-time technical experience in industry, government, and academia, 23 years of management experience, and over 76 peer-reviewed journal and conference publications.

Dr Montgomery is the 2013 recipient of the Future in Review Entrepreneur of the Year Award from the Strategic News Service. ( )


Eric Herbranson, BS, MS, DDS

Chairman & Co-founder of Brown & Herbranson Imaging

Eric Herbranson has more than 30 years experience in clinical endodontics, teaching, and image production. He is actively involved in professional photography and has been published in numerous national and regional periodicals and dental textbooks. In the last few years he has transitioned his interest in photography to digital imaging; he has gained expertise in the technical side of both digital imaging and imaging software for the computer. He has developed and taught courses on conventional and digital photography with the surgical operating microscope. He is an assistant professor (adjunct) at the University of the Pacific, School of Dentistry in San Francisco where his responsibilities include developing and giving lectures on endodontics. He has also lectured extensively to both general dental audiences and specialty audiences on microscope photography, new technology in dentistry, and the use of computers in presentations. He has an ongoing interest in dental anatomy and is the co-author of the chapter on tooth anatomy in, Pathways of the Pulp, edition 7 and 8.


Robert A. Chase, MD
Emile Holman Professor of Surgery
and Professor of Anatomy, Emeritus
Stanford University School of Medicine

Dr. Robert Chase was born in Keene, New Hampshire in 1923. He received a Bachelor of Science degree from the University of New Hampshire in 1945 and with war-time acceleration, a M.D. degree from Yale in 1947. After military service time, residency training in surgery at Yale, and in Plastic and Reconstructive Surgery at the University of Pittsburgh, Dr. Chase joined the faculty at Yale and established Yale's Section of Plastic Surgery. In 1963, he was appointed Professor and Chairman of Surgery at Stanford University School of Medicine and was named the first Emile Holman Professor of Surgery. In 1973 he took on an additional role as Acting Chairman of the Department of Anatomy. From 1974 to 1977, Dr. Chase served as President and Director of the National Board of Medical Examiners in Philadelphia. In 1977 he returned to Surgery at Stanford and assumed the position of Chief of the Division of Human Anatomy, a position he held until 1992. In 1988, he became Professor of Surgery, Emeritus but he has remained active in teaching Human Anatomy.

His curriculum vitae is laced with lectureships, editorial posts, visiting professorships, and officerships in numerous organizations. His publications include 110 papers and 35 books or chapters.

Dr. Chase has had a long-standing interest in the visual aspects of education. At present, he continues to pursue his interest in development of computer based educational materials at Stanford. Teaching has always been his first love and it has been recognized by his receipt of the Francis Gilman Blake Award at Yale and 8 teaching awards at Stanford. Bob and Ann Chase celebrated their 59th wedding anniversary in February of 2004. They have been blessed with three children and nine grandchildren, and 2 great grandchildren. The Chase's now spend many of their happiest days at their farm in their native New Hampshire.

Email address is



Dr. Charles J. Goodacre
Dean, Loma Linda University

Dr. Goodacre received his DDS degree from Loma Linda University School of Dentistry in 1971. He completed a three year combined program in Prosthodontics and Dental Materials at Indiana University School of Dentistry and in 1974 earned his MSD degree. He began full-time teaching at Indiana University School of Dentistry in 1974 and has three times received awards from senior dental classes as the outstanding clinical instructor or outstanding lecturer. He served as Chairman of the Department of Prosthodontics at Indiana University, and currently is Dean of the Loma Linda University School of Dentistry. He is a Diplomate of the American Board of Prosthodontics, Past-President of the American Board of Prosthodontics, a Fellow of the Academy of Prosthodontists, Fellow of the American College of Prosthodontists, and holds membership in the American Academy of Fixed Prosthodontics. He was co-author of the 4th edition of the textbook, Johnston’s Modern Practice in Fixed Prosthodontics, and served as an Editor of the International Journal of Prosthodontics.



Amy L. Ladd MD
Professor and Chief, Robert A. Chase Hand & Upper Limb Center at Stanford

Dr. Amy Ladd is an orthopaedic surgeon committed to the care and study of the hand and upper limb in all its manifestations: from restoring function in the injured or impaired limb to understanding the thumb and hand that separates Homo sapiens from the rest of the animal kingdom. Several interactive multimedia research and educational projects mark her current interests, including an NIH SBIR grant to develop a high-resolution imaging atlas of the human thumb in collaboration with Dr. Brown. A popular CD-ROM on wrist fractures is another example, published by the American Society for Surgery of the Hand (Distal_Radius_ASSH). She teaches Anatomy of Movement, a highly successful interdisciplinary class at Stanford University examining human motion ( Dr. Ladd received her AB in History from Dartmouth College, MD from SUNY Upstate Medical Center, completed her orthopaedic residency at the University of Rochester, and hand fellowship from the Brigham & Women's Hospital and Children's Hospital in Boston. She has been on faculty at Stanford since 1990.

Email address is

Keiko Watanabe, DDS, Ph.D

Dr. Keiko Watanabe received a doctor of dental surgery degree and graduated as valedictorian of her class from the University of the Pacific, Arthur A. Dugoni School of Dentistry in 2007. Dr. Watanabe received a DDS and PhD degree from Osaka Dental University in Japan and earned a specialty in pediatric dentistry, prior to entering the International Dental Studies program at Pacific. Dr. Watanabe has also received numerous accolades for her academic accomplishments, including being inducted into Omicron Kappa Upsilon’s national dental honor society and being named to Who’s Who Among Students in American Colleges and Universities. She also received Pacific’s Herbert K. Yee Scholarship Award and was inducted into Pacific’s Tau Kappa Omega dental honor society. Dr. Watanabe practiced in Osaka for a total of 8 years. During her time as a practicing dentist she supervised several dentists while managing her family’s dental business. Dr. Watanabe has authored or co-authored several publications that can be found in such journals as the Japanese Society of Pediatric Dentistry and the Japanese Society of Dentistry for People with Disability. In her leisure time, Dr. Watanabe enjoys playing piano, traveling and spending time with her family.

Terry W Kessler, DDS, MA
Visiting Researcher, Stanford University

Terry Kessler was in the private practice of restorative dentistry in San Francisco for over 20 years after completing a general practice residency program. He has served on the California State Board of Dental Examiners since 1986, and has advised other regional Dental Boards in utilization of interactive 3D imaging. He is a member of prestigious dental academies and societies. He co-founded several dental study clubs in the Bay Area and has always been very active in dental education. Recently he assisted Stanford University and Umea, Sweden in development of a 3D interactive simulator designed for medical and dental radiology education. Dr. Kessler is also involved in the creation of the other 3D imaging projects.

Email address is

Charles McNeill, DDS, FACD, FACD

Dr. Charles McNeill is a Professor Emeritus and the Director of the Center for Orofacial Pain at the University of California, San Francisco. He is a Diplomate of the American Board of Orofacial Pain and a Fellow of the American College of Dentists and the International College of Dentists. He is a member and former President of both the American Academy of Restorative Dentistry and American Academy of Orofacial Pain and is a past-editor of the Journal of Orofacial Pain. He has authored many articles, abstracts and book chapters, edited four books and lectured extensively on the subjects of TMD, orofacial pain and occlusion. Dr. McNeill formerly maintained a private practice for 27 years and presently maintains a private orofacial pain practice at UCSF

Dr. Ove A. Peters

Dr. Peters received his degree in Dentistry (Dr. med dent) from the University of Kiel, Germany, in 1990 After spending two years in the Department of Neurophysiology at the University of Kiel, he has served as an assistant professor in prosthodontics at the University of Heidelberg, Germany, from 1993 to 1996. He received his endodontic training at Zurich University Dental School, Switzerland, from 1997 to 2001 and was an assistant professor and head of the faculty practice in restorative dentistry at the University of Zurich from 1996 to 2001, spending his time teaching, giving CE courses next to participating in the faculty practice. His main scientific interests relate to the performance of Nickel-Titanium rotary root canal instruments tested by micro-computed tomography and torque-testing devices, which is also the topic of his PD thesis. Dr. Peters has published extensively in international journals and lectured both nationally and internationally. He moved to the US in 2001 to attend UC San Francisco and while teaching undergraduate and postgraduate endodontics, he received and MS in Oral Biology. His favourite acitivies outside the endodontic world include traveling and all sorts of outdoor sports together with his wife.

Email address is

Blaine Cleghorn, DMD MSc

Blaine received his Doctor of Dental Medicine degree and a Master of Science degree specializing in Oral Microbiology from the University of Manitoba. After five years of full-time private practice, he has been involved in the teaching of Dental Anatomy and Operative Dentistry for approximately 20 years. He is currently an Associate Professor and Director of Clinics at Dalhousie University in Halifax, Nova Scotia. Blaine has been nominated for a number of teaching awards and has received the WW Wood award for excellence in dental education, the Dean's Award for Excellence in Pre-Clinical Teaching to 1st and 2nd Year Students and an Award for Innovative Excellence in Teaching, Learning and Technology. He has an interest in and has developed award-winning interactive teaching software in dental anatomy.

Email is

Previous Contributors

W. Paul Brown, DDS, FICD, FACD

Consulting Associate Professor, Stanford University and Cofounder of and Brown & Herbranson Imaging. Clinical Assistant Professor, University of the Pacific and UCSF Schools of Dentistry. He has been the Principal Investigator on 8 NIH grants involved with medical imaging, virtual reality and simulations. Brown was in the private practice of clinical endodontics in Palo Alto, California for 27 years. Since 1982 he has been the endodontist for the San Francisco Zoo and Marine World/Africa USA where he has developed highly specialized endodontic instruments as well as performed endodontic and oral surgery procedures on exotic animals. He has given numerous presentations on endodontics and has participated in programs for National Geographic and The Learning Channel. He was the principal investigator for a research project for Alara Corp., Hayward, CA producing a comprehensive comparison of dental digital x-ray systems. He is a Fellow of the American College of Dentists and the International College of Dentists.

Bruce Fogel, DDS, FICD, FACD

Bruce Fogel is senior author of the 3-D Tooth Atlas, a clinician, and an instructor. A fellow of the International College of Dentists and of the American College of Dentists, he was in private practice limited to endodontics in Menlo Park and Mountain View, CA. Dr. Fogel is director of the endodontic surgery clinic and is clinical associate professor of endodontics at Pacific School of Dentistry, San Francisco. He also teaches endodontic surgery at the Veterans' Administration Hospital, Palo Alto, CA. A graduate of the Harvard University/Forsyth Dental Center post-doctorate endodontic program and of UCLA School of Dentistry, Dr. Fogel publishes on endodontic surgery and materials and lectures nationally and internationally on endodontics and the application of 3-D imaging to clinical practice.


Robert W. Hasel, D.D.S.
Chief Educational Consultant

Dr. Hasel graduated from the University of Minnesota, School of Dentistry in 1972. In addition to his 35 years of dental practice, Bob has been a part-time faculty member at the University of Minnesota for 30 years, and a full-time faculty member at the Arizona School of Dentistry & Oral Health from 2004-2006 where he was responsible for developing the Restorative Dentistry curriculum and running the preclinical course. In 2006 Dr. Hasel joined Midwestern University to help build the brand new Midwestern College of Dental Medicine. During his career Dr. Hasel has traveled extensively teaching clinical dentistry and owns several patents, one of which involves the use of a flowable resin composite restorative material that is in common use in dentistry today. Bob is also an avid golfer and enjoys bike riding and exercise.

Email is


Michael Flynn, Ph.D.

Michael Flynn is a radiological scientist with 25 years of experience in medical imaging. He is employed as a Bioscientific professor in the research institute of Henry Ford Health Systems and teaches in the Nuclear Engineering and Radiological Science program at the University of Michigan. His research is directed at X-ray imaging methods for radiography and tomography. Current research on very high-resolution micro-tomography for the evaluation of bone specimens is supported by NIH (NCRR R21-RR13347, NIAMS R01-AR47994).

Email address is

Rebecca L. Slayton, DDS, PhD

Dr. Slayton is a board certified Pediatric Dentist and a diplomat of the American Board of Pediatric Dentistry. She received her D.D.S. degree in 1992, a certificate in Pediatric Dentistry and a Ph.D. in Genetics in 1998, all from the University of Iowa. She had a faculty appointment at the University of Iowa, College of Dentistry for four years. Dr. Slayton served as Associate Professor and Chair of the Department of Pediatric Dentistry at Oregon Health & Science University (OHSU) from August 2002 until March 2004 when she joined the faculty at the University of Washington in Seattle. She is the Director of the Early Childhood Oral Health Program at the University of Washington. She treats patients in the Pediatric Dentistry clinic, teaches pre-doctoral students and residents in the clinics and lectures to third year dental students and residents. She serves as the Region X Head Start Oral Health Consultant.

Dr. Slayton has a grant from the National Institute for Dental and Craniofacial Research to investigate the genetics of dental caries susceptibility.

Email is rslayton@u.washingt

Siddharth Vora. B.D.S.

Siddharth completed his Dental degree (BDS) from Nair Hospital Dental College, MUMBAI, India in 2002. He came to Boston University in 2003 and joined the Dept. of Oral Biology and Periodontology to obtain a PhD. His research interests are in bone biology, particularly in bone formation. Currently, he is working on the propeptide domain of the enzyme: lysyl oxidase, and is studying it's effects on bone cell proliferation and differentiation. Siddharth hopes to obtain a clinical degree in orthodontics, continue with research and teach.

Email address is

Tanya M. Smith, PhD
Biological Anthropologist

Tanya is a Biological Anthropologist specializing in living and fossil human and primate tooth development and structure. She completed her PhD at Stony Brook University in 2004 on the incremental development of primate dental enamel. Subsequently she served as the co-founder and coordinator of the Dental Tissues Working Group in the Department of Human Evolution at the Max Planck Institute for Evolutionary Anthropology (MPI-EVA) in Leipzig, Germany. Members of the Dental Tissues Working Group employ high resolution micro-computed tomography to study the internal and external shape and development of dental tissues. This also includes the application of synchrotron X-ray imaging undertaken at the European Synchrotron Radiation Facility in Grenoble, France. Tanya currently has a faculty appointment in the Department of Anthropology at Harvard University and an affiliation at the MPI-EVA. Her research continues to explore the fundamental nature of tooth growth and structure, as well as the evolution of the unique prolonged pattern of dental growth and development that characterizes our own species.

Email address is

Dr. Ralf J. Radlanski

Dr. Ralf J. Radlanski is Professor and Head of the Dept. of Craniofacial Developmental Biology at the Charité Center for Dental and Craniofacial Sciences, Campus Benjamin Franklin at Freie Universität Berlin, Germany. He studied medicine and dentistry at the Universities of Göttingen (Germany) and Minneapolis (MN, USA). After postgraduate educations in anatomy, embryology, and orthodontics at the University of Göttingen, he came to Berlin in 1992. His main research interest is the visualisation of prenatal craniofacial development in 3D. He was a National Delegate in the Management Board of the European COST B23 action “Craniofacial Morphogenesis” and Chairman of the Working Group „Development and Evolution“ from 2003 – 2008. From 1999 to 2008 Dr. Radlanski has served as Managing Director of the dental clinic at the University Clinic Benjamin Franklin of Freie Universität Berlin. Together with Frans van der Linden and James McNamara jr., Ralf J. Radlanski is a co-author of “Dynamics of Orthodontics”, a 3D animated visualisation of craniofacial growth and orthodontic treatment on DVD. In 1995, Dr. Radlanski has been President of the 10th International Symposium On Dental Morphology in Berlin, and in 2010, he will be President of the 10th Symposium of Tooth Morphogenesis and Differentiation in Berlin.

Email address is

Scott T. Barrows, MA, CMI, FAMI
Program Director & Clinical Assistant Professor, Biomedical Visualization. University of Illinois at Chicago Medical Center

Scott Barrows heads one of the four accredited graduate programs in medical illustration and biomedical animation in the United States at UIC which is the second oldest program in the western hemisphere. Home of the award winning Virtual Reality in Medicine Laboratory, the Biomedical Visualization program also includes a curriculum in anaplastology for maxillofacial and somatic prosthetics. Scott's work has been featured at Nobel conferences, in galleries worldwide, in publications such as National Gegraphic, and in over 250 journal articles and 60 clinical books. He is also the co-creator of Age-Progressed Imagery, a simulation of normal facial growth used to find over 20 missing children. His work has received recognition from two US presidents and the Smithsonian-Computerworld Award for Innovative Technology, among many others. His work has appeared monthiy in the Journal of the American Academy of Orthopaedic Surgeons for the last 18 years. Scott was an assistant professor at the University of Texas Southwestern Medical Center and is an Honors graduate of the University of Illinois at Chicago Medical Center. He also has a masters degree in educational leadership from University of Illinois at Springfield.

Email address is


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