Meet our commissioners

Dr. Cindi Sherwood (ADA), Chair

Dr. Cindi Sherwood has been a general dentist practicing in Independence, KS since graduating from the University of Missouri - Kansas City in 1982. She graduated as a Registered Dental Hygienist from Wichita State University in 1975. She has served the ADA in many capacities including as a member of the Council on Dental Practice and is completing her term on ADPAC this fall. Dr. Sherwood has served over 20 years as an ADA delegate or Alternate including as a member of two Reference Committees. She is a fellow of ACD,ICD and the Pierre Fauchard Academy. Dr. Sherwood is a Past President of the Kansas Dental Association and is currently a member of the Legislative Council. She has volunteered at 25 Mission of Mercy projects. Cindi also served the AGD on the Board of Trustees for 6 years representing Arkansas, Kansas, Louisiana, Mississippi and Oklahoma.

Douglas A. Wyckoff (ADA), Vice-Chair

Dr. Wyckoff graduated from the University of Missouri-Kansas City School of Dentistry in 1992.  He has been in private practice in Cameron, Missouri since that time.  He has been active in all levels of organized dentistry, serving as President of his local dental society, and the Missouri Dental Association in 2008.  He has served on the Committee on the New Dentist and the Council on Annual Sessions for the ADA in which he was the Continuing Education Chair in is final year. He has served as a Delegate for the ADA and Missouri Dental Association and is currently the Editor for the Missouri Dental Association.  

Dr. Renee Fennell (ADA) 

Dr. Fennell's photo and bio coming soon.

Dr. Joseph E. Gambacorta (ADA)

Dr. Joseph E. Gambacorta is a 1993 graduate of the University at Buffalo (UB) School of Dental Medicine, and a 2022 graduate of the UB School of Public Health and Health Professions where he received his Master of Public Health degree with a concentration in Community Health and Behavior. He also completed a Bachelor of Arts in Biological Sciences from UB in 1989 and a General Practice Residency at Millard Fillmore Hospital in 1994. Dr. Gambacorta became a faculty member of the School of Dental Medicine in 2002. Where he has served in many roles. He was the associate dean for its clinical affairs from 2012-2021, the associate dean for academic and faculty affairs from 2021-2023 and most recently serving as the interim assistant vice president of Office of Interprofessional Education at the University at Buffalo from 2022-2023. Currently, Dr. Gambacorta is Professor and Associate Dean for Clinical Affairs at the Medical University of South Carolina College of Dental Medicine in Charleston.

Dr. Wendy S. Hupp (AAOM)

Dr. Wendy S. Hupp is a 1984 graduate from the University of Pennsylvania School of Dental Medicine in Philadelphia.  After six years of general dentistry practice, she joined the U.S. Navy Dental Corps.  She received a Certificate in Oral Medicine from the National Naval Dental Center, Bethesda, Maryland in 1997.  In 2000, Dr. Hupp became the first Oral Medicine specialist at the new dental school at Nova Southeastern University in Fort Lauderdale, Florida.  In 2007, she moved to the University of Louisville School of Dentistry in Louisville, Kentucky where she earned tenure and was the department chair of General Dentistry and Oral Medicine. Dr. Hupp helped start a nurse practitioner medical practice within the School of Dentistry. She helped create an interprofessional training program with the School of Nursing and other disciplines to raise the healthcare access and quality in rural Kentucky.  She retired in 2018 but continues to lecture, consult, and mentor dental students and dentists in all stages of dental practice and academic careers.   Dr. Hupp is a Diplomate of the American Board of Oral Medicine, and is a past president of the American Academy of Oral Medicine.

Dr. Rujuta Katkar (AAOMR)

Dr. Rujuta Katkar completed her advanced training with a Master’s degree in Oral & Maxillofacial Radiology from the University of Iowa College of Dentistry in 2011. She is a diplomate of the American Board of Oral & Maxillofacial Radiology. Currently she is an Associate Professor and Clinic Director for Graduate Oral & Maxillofacial Radiology clinic at the University of Texas Health San Antonio, School of Dentistry. Prior to joining the University of Texas, she worked at the University of Florida College of Dentistry as the Division Director of Oral & Maxillofacial Radiology. Dr. Katkar is actively involved in predoctoral and postdoctoral education, has numerous presentations and publications at national and international conferences and peer reviewed journals and books. Dr. Katkar has served as a Secretary, Vice-Chair and Chair of the OMR section at the American Dental Education Association (ADEA), Chair of Research & Technology Committee at the American Academy of Oral & Maxillofacial Radiology (AAOMR) and has served on the Executive Council of the AAOMR as the Councilor of Communications.

Dr. Harold "Mark" Livingston (ADA)

Dr. Livingston graduated from University of Tennessee's College of Dentistry in May of 1991 followed by completion of a General Practice Residency at the University of Mississippi Medical Center (UMMC) in June of 1992. He joined the faculty of the School of Dentistry at UMMC in August of 1997. During his tenure there, he was program director of their General Practice Residency and Advanced Education in General Dentistry programs and is currently chair of the Department of Advanced General Dentistry. During this time, he also obtained a Master's in Clinical Science and a Master's in Business Administration. Dr. Livingston was Vice Chair and Chair of the Commission on Dental Accreditation in 2016 and 2017, respectively. Other accolades include obtaining Diplomate status with the American Board of Special Care Dentistry in 2004, Mastership in the Academy of General Dentistry in 2007, induction into the American College of Dentists in 2014, Fellowship in Special Care Dentistry in the Royal College of Surgeons of Edinburg in 2014, and membership in the Faculty of Dental Trainers in the Royal College of Surgeons of Edinburg in 2020. In addition, his granting activities exceeded 2.6 million dollars.

Dr. Jeffrey Lodl (ADA)

Dr. Jeffrey Lodl graduated from the University of Nebraska Medical Center College of Dentistry in 1986.  He then completed a one year General Practice Residency at Denver General Hospital in 1987.  He bought a private practice from a retiring dentist and has been in private dental practice ever since.  He joined the board of directors for the Metropolitan Denver Dental Society shortly thereafter and was President from 2004-2005.  He has been a delegate to the Colorado Dental Association for over 35 years and an alternate delegate and delegate to the ADA.  He joined Dental Lifeline Network Board of Directors in 2006 after starting as a volunteer in 1988.  He is the current President of Dental Lifeline Network for Colorado. He served as a Board Member for the Colorado Dental Association from 2018-2024 and was elected Vice President in 2024.  He chaired the Medicaid Task Force from 2023-2024 that helped gain significant reimbursement increases for Adult Medicaid Benefits in 2024.  He is a fellow of the International College of Dentists. 

Dr. Michael Mashni (ASDA)

Dr. Michael Mashni is a Dentist Anesthesiologist in private practice in Southern California.  He received his dental degree from Loma Linda University School of Dentistry and completed his residency in dental anesthesiology at Loma Linda University Medical Center.  He has been a faculty member of the Loma Linda University School of Dentistry and the Herman Ostrow School of Dentistry at the University of Southern California.  Dr. Mashni is a Past President of the American Society of Dentist Anesthesiologists and Tri-County Dental Society.  He is a founder and Past President of the American Board of Dental Specialties.   He has also served as an officer on the American Dental Board of Anesthesiology and the California Society of Dentist Anesthesiologists.  Dr. Mashni is currently a member of the Board of Component Representatives to the California Dental Association.  Dr. Mashni is a member of the American College of Dentists and International College of Dentists. 

Dr. Kathleen Murphy has served for decades on various task forces and committees related to professional standards and professional ethics within different professional associations such as the National Association of Social Workers and the American Library Association. For the last decade, she has served on and managed the Social and Behavioral IRB for Northwestern University in addition to various committees at Northwestern University related to policy development, education and community engaged scholarship.

Dr. Gregory Ogata (AAO)

Dr. Ogata's bio coming soon.

Dr. David Okano (AAP)

Dr. David Okano is a periodontist who has been in full-time academics at the University of Utah School of Dentistry for the past 10 years.  His DDS along with Certificate and MS in periodontics are from the University of Nebraska College of Dentistry.   He is a Professor and currently serves as Section Head of Periodontics and Assistant Dean for Advanced Dental Educations Programs.  Prior to this, he practiced periodontics and dental implant surgery for 30 years in Rock Springs, Wyoming.  He is a Diplomate of the American Board of Periodontology. 

David is a Past-President of the Wyoming Dental Association and the American Academy of Periodontology.  He has served as a Delegate to the ADA House of Delegates and has served on the ADA Council on Dental Practice and ADA Council on ADA Annual Sessions.

He is a member of OKU and a Fellow of the International College of Dentistry, American College of Dentists, Pierre Fauchard Academy and Academy of Dentistry International.

Dr. Richard Potter (ADA)

Dr. Rich Potter is a general dentist practicing in San Antonio, Texas.  He received his Doctor of Dental Surgery degree in 1996 from the University of Texas Health Science Center San Antonio Dental School.  He is an active member of the American Dental Association, the Texas Dental Association, and the San Antonio District Dental Society. Dr. Potter recently completed a three-year term on the TDA Board of Directors and is a Delegate for the 15th ADA District from Texas.  He has also served as a member of the TDA Council on Governance. Dr. Potter currently serves as Secretary on the Texas Mission of Mercy Board of Directors and chairs their Governance Committee. Dr. Potter is a Past President of SADDS and is currently Vice President of the SADDS Foundation.  He is a fellow of the American College of Dentists, International College of Dentists, and Pierre Fauchard Academy.  

Dr. Stephen Radack is a 1986 graduate of the University of Pittsburgh School of Dental Medicine and is a general dentist in private practice in Erie, PA. He is a past-president of the Pennsylvania Dental Association where he has also served as trustee, vice-president and treasurer. He is current the editor of the Pennsylvania Dental Journal. Dr. Radack previously served on the Joint Commission on National Dental Examinations (vice-chair), the ADA Committee on Annual Meetings and 14 years in the ADA House of Delegates. Dr. Radack has served on the faculty of the LECOM School of Dental Medicine and is a consultant dental examiner for CDCA-WREB. He is a fellow in both the American College of Dentists and the International College of Dentists.

Dr. Jignesh Rudani (ADA)

Dr. Rudani's bio coming soon.

Dr. Sara Spurlock (ADA)

Dr. Sara Spurlock is a dentist, educator, and innovator committed to advancing periodontal health and salivary diagnostics. A graduate of the University of Oklahoma College of Dentistry, she owns Dental Design Studio in Norman, Oklahoma, where she leads a team focused on comprehensive, patient-centered care.

She is the co-founder of Perio Pathway, which guides dental professionals in implementing periodontal protocols; Orapath, a collaboration with IMMYLabs developing salivary diagnostic testing; and Oraprotek, an oral synbiotic created to support oral-systemic health.

Dr. Spurlock serves on the Oklahoma Dental Association Board of Trustees and has held leadership roles as Central District Society President and Annual Meeting Planning Co-Chair. A frequent lecturer on periodontal and diagnostic innovations, she is a Kois Center graduate and active member of the ADA, AGD, and Pierre Fauchard Academy.

Dr. B.D. Tiner (AAOMS)

Dr. B. D. Tiner, DDS, MD, FACS, is a Clinical Assistant Professor in the Department of Oral and Maxillofacial Surgery at the University of Texas College of Dentistry in San Antonio.  After graduating from the University of Tennessee College of Dentistry in 1975, he completed a residency in Oral and Maxillofacial Surgery at the University of Texas HSC in San Antonio in 1984. Following residency, he earned a Doctor of Medicine from the University of Texas Medical School at San Antonio in 1987.  Dr. Tiner retired in 2000 as a Captain from the United States Navy Dental Corps after a 25 year career.  From 1989-1996 he served as an Associate Professor in the Department of Oral and Maxillofacial Surgery at the University of Texas HSC in San Antonio.  In 1997 he began a 25 year career in the private practice of Oral and Maxillofacial Surgery with Alamo Maxillofacial Surgical Associates in San Antonio.  During his professional career, Dr. Tiner has been actively involved in organized dentistry. He has served as President of the Texas and Southwest Societies of Oral and Maxillofacial Surgery.  More recently he served as the President of the American Board of Oral and Maxillofacial Surgery and as President of the American Association of Oral and Maxillofacial Surgeons. Dr. Tiner has served as a site visitor for the Commission on Dental Accreditation, as a member of the OMS Resident Review Committee and as the OMS Commissioner for CODA.  He is Board Certified by the American Board of Oral and Maxillofacial Surgery and is a Fellow of the American College of Dentists and the American College of Surgeons.    

Dr. Michael Ungerleider (ADA)

Dr. Ungerleider's bio coming soon.