Faculty Board

Colgate wishes to thank the 2021 Dental Hygiene Faculty Advisory Board who partnered with Colgate to guide the content of the Colgate Dental Educators Network.

Dental Hygiene Faculty Board


Valerie Nieto, RDH, MS

Valerie Nieto, RDH, MS is a clinical lecturer in the Division of Dental Hygiene at the University of Michigan School of Dentistry. She is a senior class clinical coordinator and currently teaches in the entry and graduate level dental hygiene programs. Valerie completed the UMSoD MSDH Teaching and Clinic Research Fellowship in 2019, where her thesis research focused on dental hygiene program directors’ perceptions of OSCEs as an assessment for clinical competency and licensure.

Dr. Christopher W. Bowers

Dr. Christopher W. Bowers is an assistant professor in the Dental Hygiene Department at New York City College of Technology (CUNY) where he teaches pharmacology and is an attending dentist in the dental hygiene clinic. Dr. Bowers received his BA and MS degrees in neuroscience from Johns Hopkins University and his DMD degree from the Medical University of South Carolina School. He completed his general practice residency at Long Island College Hospital and Lutheran Medical Center. Dr. Bowers is a faculty member of the AIDS Education Training Center (AETC) and is an active member of the American Dental Association, the New York State Dental Association, the Second District Dental Society, and the Brooklyn Dental Study Club. In addition to teaching and volunteering, Dr. Bowers also maintains a private practice in Brooklyn Heights.

Donna Lesser, MA, EdD

Donna Lesser, MA, EdD, has over 35 years’ experience as a dental hygienist in private practice, public health and education. She has been a dental hygiene director, dental hygiene educator and dental educator where she has extensive experience with curriculum and assessment development. She remains active as a clinical dental hygienist in a private periodontal practice and does consulting.

Shannon Mitchell, RDH, MS

Shannon Mitchell RDH, MS is an Associate Professor at the University of North Carolina at Chapel Hill. She received her BS degree from Old Dominion University in 1983 and worked as a public health dental hygienist in Hampton, Virginia for 5 years. She received her MS degree from the University of North Carolina in 1990, and works full time at the Adams School of Dentistry in the dental hygiene programs. She teaches in the BS and MS degree programs in Dental Hygiene and the pre-doctorial DDS program. In 2000 she received an ADEA, Presidential Citation for her leadership role developing and implementing the section on dental hygiene for the development of the Clinical Coordinators Special Interest Group (SIG), which is an active SIG today. In 2015 she received the Old Dominion University, School of Dental Hygiene Outstanding Alumnus Award. She speaks nationally on teaching strategies that promote critical thinking and advanced instrumentation for non-surgical periodontal patient care.

Amanda Reddington, LDH, MHA, CDA, EFDA

Amanda Reddington LDH, MHA, CDA, EFDA is a clinical assistant professor of Dental Hygiene and Dental Assisting at the University of Southern Indiana located in Evansville Indiana. Amanda earned both her Bachelors in dental hygiene, and her Masters in health administration from the University of Southern Indiana. Mrs. Reddington has spent her career promoting team based, individualized patient care that strengthens the oral systemic connection. She advocates for all dental professionals and is active in local, state, and national Dental organizations including being the chair for the American Dental Education Association Dental Assisting Section. Amanda has been active in the Colgate Educators Network since 2017 and is proud to continue to serve.

Dentist Faculty Board


Prof. Ernest Lam

Professor Ernest Lam is the Dr. Lloyd & Mrs. Kay Chapman Chair in Clinical Sciences and the Director of the Oral and Maxillofacial Radiology Graduate Program in the Faculty of Dentistry, University of Toronto. As well, Professor Lam serves as the Associate Dean for Graduate Education in the Faculty. Dr. Lam completed B.Sc.(Hons.), D.M.D. and M.Sc. degrees at the University of British Columbia in Vancouver, Canada, and spent 2 years in general practice dentistry in Vancouver before completing a Certificate in Oral and Maxillofacial Radiology and a Ph.D. in Radiation Biology at the University of Iowa in Iowa City, USA. Professor Lam is a Fellow of the Royal College of Dentists of Canada in Oral and Maxillofacial Radiology, and has served the College as the Councilor for Oral and Maxillofacial Radiology, the Chief Examiner in Oral and Maxillofacial Radiology, and Treasurer. As well, Dr. Lam is a Diplomate of the American Board of Oral and Maxillofacial Radiology, and has served the Board as a Director, Secretary/Treasurer and President.

Dr. Eileen R. Hoskin

Dr. Eileen R. Hoskin is Director of the Division of Operative Dentistry within the Restorative Department at Rutgers, The State University of New Jersey School of Dental Medicine (RSDM). Positions at RSDM include course directorships, Director for Academic Affairs and Group Practice Administrator. Additionally, she maintains a private practice for many years in New York City. Dr. Hoskin earned a dental degree from New Jersey Dental School (now Rutgers School of Dental Medicine); attended a General Practice Residency at St. Luke’s/Roosevelt Hospital in New York City and attained a master’s degree in dental education through American Dental Education Association (ADEA) /Academy for Academic Leadership (AAL) and the University of the Pacific, Arthur A. Dugoni School of Dentistry. She completed a teaching certificate in effective college instruction through the Association of College and University Educators (ACUE) and has participated in many ADEA programs, including the Summer Program for Emerging Academic Leaders, and the Institute for Teaching and Learning. She has also completed the ADA/ Forsyth School program in Evidence Based Dentistry. Dr. Hoskin has published research in the Journal of Dental Education, Evidence-Based Dentistry, and Nutrition and Gerodontology and is a peer reviewer for many dental journals including Operative Dentistry and for the Academy of General Dentistry. Within dentistry and dental education, her focus is pedagogy and cariology. Updating cariology curriculum and researching best methods for teaching practices are her passion. She has presented programs at ADEA’s Annual Session & Exhibition, including Short Talks and Workshops. Her current leadership roles include chair of the Dental Admissions Testing group within the ADA’s Council on Dental Education and Licensure (CDEL), President- Elect of the Rutgers School of Dental Medicine Alumni Association, Secretary/ Treasurer of the Academic Assembly at Rutgers School of Dental Medicine and past Chair of the ADEA Scholarship of Teaching and Learning (SoTL) Special Interest Group She is an active member in the American Academy of Cariology (AAC), Caries Management by Risk Assessment (CaMBRA) and the Consortium of Operative Dentistry Educators (CODE).

Dr. Sepideh Shaffer

Dr. Sepideh Shaffer received her undergraduate degree in Psychology from New York University. She then earned her DDS degree from Stony Brook University School of Dental Medicine, receiving awards for leadership, outreach, and academic excellence. Dr. Shaffer continued her dental training at Stony Brook University School of Dental Medicine, completing a general practice residency and staying for a subsequent year of training as Chief Resident focusing on complex prosthetic cases. Dr. Shaffer currently maintains both a private practice and academic appointments. In private practice, Dr. Shaffer focuses on minimally invasive dentistry using a dental microscope for restorative dentistry. She has academic appointments at both Stony Brook University School of Dental Medicine as well as Touro College of Dental Medicine. In both institutions, Dr. Shaffer serves as a clinical instructor working with third- and fourth- year dental students. Through Stony Brook University School of Dental Medicine, Dr. Shaffer participates in an annual outreach program to Pine Ridge, South Dakota Outside of her academic appointments, she participates in local community outreach to increase exposure and access to care of those who are less fortunate.

Dr. Peter De Sciscio

Dr. Peter De Sciscio is a Professor at Rutgers School of Dental Medicine in the Department of Restorative Dentistry. He earned his Doctor of Dental Medicine degree from the New Jersey Dental School (now Rutgers School of Dental Medicine) in 1985. In 2004, Dr. De Sciscio received the Excellence in Teaching Award from the university. He was also elected and awarded Fellowship in the American College of Dentists and the International College of Dentists. He is the Vice-President of the New Jersey Dental Association and is an active member of the Commission on Competency Assessment serving on the Steering and Finance Committees. He is also Vice-Chair of the ADEX Examination Committee. Dr. De Sciscio is also a Past President of the American Association of Dental Boards, as well as Past President of the New Jersey Academy of General Dentistry.

Dr. Golda Erdfarb

Dr. Golda Erdfarb is an Associate Professor at the Touro College of Dental Medicine (TCDM). She began teaching at TCDM when it first opened in 2016 and also the Course Director for both Preclinical Operative Dentistry and Dental Anatomy & Occlusion. As the recipient of the TCDM’s 2019 Faculty of the Year Award, Dr. Erdfarb’s insatiable passion for teaching is demonstrable, as is her commitment to educating the next generation of ethical and moral dentists who provide access to care for all. She is a recent graduate of the Touro College Leadership and Management program. Prior to joining the faculty, she worked in private practice seeing pediatric patients and in a clinical setting treating underserved communities. Dr. Erdfarb is licensed to practice in New York and New Jersey.