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JCNDE Members and Appointing Organizations

picture of dr. cataldo leone (adea)

Dr. Cataldo Leone (ADEA), Chair

Dr. Cataldo Leone, chair of the Committee on Research and Development, is professor of Periodontology and associate dean for academic affairs at Boston University Henry M. Goldman School of Dental Medicine. He also maintains a hospital appointment at Boston Medical Center. Dr. Leone was awarded a D.M.D. from the University of Pittsburgh in 1983, and holds a certificate in Periodontology and a Doctor of Medical Sciences in Oral Biology degree from Harvard University. 


image of Dr. Ragu

Dr. Kanthasamy Ragunanthan (ADA), Vice-Chair

Kanthasamy “Ragu” Ragunanthan, DDS, MS, chair of the Committee on Examination and Development, is the president and owner of Canton Family Dentistry in Canton, OH and has been in private practice for more than 25 years. In addition to practicing general dentistry, Dr. Ragu has several years of teaching experience at dental programs in the Akron area. He is a member of the American Dental Association and the Ohio Dental Association and a past president of the Stark County Dental Association. Dr. Ragu is a graduate of the University of Peradeniya in Sri Lanka and Case Western Reserve University’s School of Dentistry. 

image of Dr. Roy Irons

Dr. Roy Irons (AADB)

Roy L. Irons, DDS, is a dental practitioner in Gulfport, Mississippi, providing much needed high-quality dental care and treatment options in a part of the country often overlooked. Dr. Irons earned his bachelor’s degree in chemistry from Tougaloo College in 1972 and his dental degree from the University of Iowa in 1976. Following graduation, he spent four years as active military in the United States Navy, serving as a general dentist before spending 20 years in the Reserves. He retired as a U.S. Navy Captain. Dr. Irons’ distinguished career has included active service in a number of national and local professional organizations, including the American Dental Association, National Dental Association, the Academy of General Dentistry, the Mississippi Dental Association, the Mississippi Dental Society and the Jamaica Dental Association. He joined the faculty of the University of Mississippi School of Dentistry in 1976 and continues to serve as an instructor, in addition to serving on the faculty of the UMC Community Dentistry Department.


 image of Dr. Frank Maggio
Dr. Frank A. Maggio (AADB)

Frank A. Maggio, DDS, chair of the ad-hoc Committee on Communication and External Stakeholders, practices periodontics in Elgin, IL. A graduate of the University of Illinois and the Loyola University School of Dentistry, Dr. Maggio spent two years as a Captain in the US Army Dental Corps. He received his certificate in periodontics and, following his military service, went into private practice. Dr. Maggio is an active member of the American Dental Association, American Dental Education Association, Illinois State Dental Society, American Academy of Periodontology, Illinois Society of Periodontology, and several other professional organizations. He has held several teaching positions over his career and currently is a faculty member at the University of Illinois College of Dentistry Department of Periodontics.

Picture of Dr. William Robinson

Dr. William Robinson (AADB)

Dr. Robinson, is a dentist in Florida who has served as chair of the Florida Board of Dentistry. He is a fellow of the American College of Dentists and served as chair of the ethics committee, where he contributed to "An Ethics Handbook for Dentists." He is a fellow of the Pierre Fauchard Academy and the International College of Dentists, where he served as international councilor.  He graduated cum laude with a D.D.S. from the University of Tennessee College of Dentistry and received the Life Achievement Award from both the Hillsborough County Dental Association and the West Coast Dental Association.

image of Wesley Thomas 
Dr. Wesley Thomas (AADB)

Dr. Wesley Thomas, DMD, currently serves as the Vice Chairperson of the District of Columbia Board of Dentistry. He is a Dental Board Licensing Examiner for the Commission on Dental Competency Assessments (CDCA) and the Council of Interstate Testing Agencies, Inc. (CITA). He is also a Fellow in the International College of Dentists. Dr. Thomas worked briefly in private practice before accepting his current position as a General Dentist for the US Department of Defense at The Pentagon. He is also a military officer in the District of Columbia Army National Guard. Dr. Thomas is a Phi Beta Kappa graduate of Morehouse College and received his D.M.D. from the University of Connecticut School of Dental Medicine. 

image of Dr. Joseph Zambon
Dr. Joseph J. Zambon (ADEA)

Joseph J.  Zambon DDS, PhD, currently serves as dean of the University at Buffalo, School of Dental Medicine. Dr. Zambon has been a faculty member at the University at Buffalo, School of Dental Medicine since 1982, rising to the rank of State University of New York Distinguished Teaching Professor. He previously served as associate dean for academic affairs for fifteen years. As a faculty member, he practiced periodontics for over thirty years. Prior to joining the faculty, Dr. Zambon served as a dental officer in the U. S. Navy. Dr. Zambon is a nationally and internationally recognized authority on oral microbiology and a prolific scientist with over 300 publications. His research and teaching have been recognized with numerous awards and honors. 

image of J. Allaire
Ms. Joanna Allaire (ADHA)

Ms. Allaire is an Associate Professor and the Dental Hygiene Program Director at Lone Star College Kingwood in Kingwood, Texas. A licensed dental hygienist for more than 40 years, she received her Master of Dental Hygiene in 2012 from the University of Tennessee Health Science Center. She is a member of the American Dental Hygienists Association, the Texas Dental Hygienists Association, and the Greater Houston Dental Hygienists Society. She currently serves as an accreditation consultant for the Commission on Dental Accreditation and sits on the Texas State Board of Dental Examiners Dental Review Committee.


image of Dr. King
Dr. Michael E. King (ADA)

Dr. King has been in private practice since 1995 and currently owns a dental office in Burke, VA. A veteran of the United States Navy, he was the Department Head on board the USS Nashville, LPD-13, where he performed all areas of dentistry and was continuously trained in his craft. He is a member of the Northern Virginia Dental Society, Virginia Dental Association, American Dental Association, and Academy of General Dentistry. Dr. King graduated from Virginia Tech with an undergraduate degree in microbiology (pre-dentistry) before attending dental school at the University of Maryland at Baltimore.


image of Dr. Michael Sanders 
Dr. Michael Sanders (AADB)

Dr. Sanders, DMD, EdM, is a tenured professor at the UNLV School of Dental Medicine. He graduated from the New Jersey Dental School (now Rutgers School of Dental Medicine) in 1978 and completed his EdM from Rutgers University in 1990. He has chaired academic departments at both the New Jersey Dental School and the UNOV School of Dental Medicine. Dr. Sanders is a member of the American Dental Association and will serve as the President of the Nevada Dental Association commencing in June 2019. He holds fellowships in the American College of Dentists, the International College of Dentists and the Pierre Fauchard Academy. He is a member of the Nevada State Board of Dental Examiners and examines for the Commission on Dental Competency Assessment and the Western Regional Examining Board.



Dr. Douglas C. Wilson, PhD (Public Member)

Since 2000, Dr. Wilson has served the National Park Service as an archaeologist for the Pacific West Region. He has taught he has taught the Public Archaeology Field School at Fort Vancouver – a partnership of the National Park Service, Portland State University, and Washington State University Vancouver – since 2001 and he has served as Adjunct Associate Professor of Anthropology at Portland State University since 2004. Dr. Wilson has written many articles and book chapters in diverse publications including American Antiquity, Columbia Magazine, the Federalist, Historical Archaeology, Journal of Archaeological Method and Theory, and the Journal of Community Archaeology & Heritage.  


JCNDE Liaisons and Observers


image of student Brandon Rensch 

Mr. Brandon Rensch, ASDA Student Representative

Brandon Rensch is a fourth-year dental student at Creighton University in Omaha, NE. In addition to serving as president of his local ASDA chapter, he is also the District 8 trustee for ASDA and acts as liaison to dental schools in Nebraska, Iowa, Minnesota, and Missouri. Mr. Rensch attended the University of South Dakota where he graduated Magna Cum Laude in Medical Biology. 

Wanted: Test Constructors

The JCNDE is looking for qualified test constructors to generate questions for the National Board Dental and Dental Hygiene examinations. Find test constructor information on