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Dental assisting students participate in a lab exercise.
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Dental Assisting

A Centers of Excellence study estimated more than 3,500 dental assisting jobs would become available between 2017 and 2022 in the Inland Empire and desert regions. That’s an increase of 14 percent. So if you’re considering this field, you’ll be in high demand. 

Upon completion of the Registered Dental Assisting Program you will acquire a Dental Assisting Certificate of Completion, the California Radiation Safety Certificate, Pit and Fissure Certificate and the Coronal Polishing Certificate (must pass RDA Examination to activate).

The program gives students access to:

  • Supervised practice sessions at Loma Linda University School of Dentistry. Students work with student dentists and experience using techniques and skills required to be a successful dental team member.
  • Internships at local dental offices where students will receive practical, hands-on experience.
  • Community interaction such as delivering presentations to help educate school children about oral hygiene and nutrition
  • Meeting with local dentists for career advisement.
  • Eligibilty to join the American Dental Assistants Association, California Dental Assistant Association, and Pomona Valley Dental Assistant Society.


Chaffey College’s dental assisting program is accredited by the Commission on Dental Accreditation (CODA). The commission is a specialized accrediting body recognized by the United States Department of Education. The Commission on Dental Accreditation can be contacted at (312) 440-4653 or at 211 Chicago Avenue, Chicago, IL 60611-2678. The program is designed to prepare students for the Dental Assisting National Board examination to become Certified Dental Assistants as well as the RDA Combined Exam to earn the RDA license. The program is also approved by the Dental Board of California. This one-year full-time program begins each fall.


Tayna Cusick, BS, CDA, RDA
Program Director
(909) 652-6668

As the director of the Chaffey College registered dental assisting program beginning in 2018, Tanya brings experience, organization and innovation to the curriculum and teaching methodologies to engage students in learning and success in the dental profession.

Tanya has been in the dental field since 1993. She graduated from Cerritos Community College in Norwalk and earned her bachelor’s degree in Organization Leadership from Azusa Pacific University. Tanya has her Designated Teaching Credential and has taught at Alhambra High School. She has a wealth of dental office experience. Her college teaching experience began in 2007 as an adjunct/part-time instructor at Citrus College and then including Pasadena City College in 2010. She considers herself a life-long learner, as she prepares to continue her education. During her free time she enjoys hanging out with her three favorite guys—her husband and two kids. She enjoys watching her two sons play sports: roller-hockey, soccer and football.


Wendy Bordewich, RDA

Wendy has been a Registered Dental Assistant for 23 years, and has been teaching for 6 years. She has her Bachelors in Business Management and is currently working on her Masters in Organizational Leadership. Both degrees will be from National University.


Anne Contreras, CDA, COA, RDA, OA, M.Ed.

Anne has been in the dental profession for 24 years. She received her Associates of Science Degree in Dental Assisting from Cypress College, CTE Teaching Credential from University of San Diego, earned her bachelor’s degree in sociology from Chapman University and was awarded her Master’s Degree in Education from the University of San Diego.

Ms. Contreras has taught at several private colleges, high schools, adult education and community college dental assisting programs for over a decade. She teaches courses in dental materials, introduction to dental chairside assisting, advanced chairside techniques, orthodontic assisting, coronal polishing, infection control, pit and fissure sealants, radiology and ultrasonic scaling. In addition to her passion of teaching students, she is also an active chairside orthodontic assistant at a private practice during the summer and BLS Health Care Provider CPR Instructor for the American Heart Association. She is a member of several dental and teacher associations and gives back to the community by volunteering at free clinics.

Ms. Contreras is a previous subject matter expert, writing and editing the written portion of the California Registered Dental Assisting examination and is currently serving her term as Chair for the Dental Board of California, representing dental assistants on the Dental Assisting Council. On a national level, she is currently working with the Dental Assisting National Board as a subject matter expert.


Stephanie De Leon, RDH

Stephanie graduated from Loma Linda University with her Bachelor's in Registered Dental Hygiene and she has been in dentistry for 6 years. Before becoming a hygienist, she was a Registered Dental Assistant at a pediatric dental office. Stephanie became interested in the teaching dental assisting because of her positive experience as a student at Chaffey College and her work experience. Her experience and perspective helps her relate to her students. In her past time, she enjoys hanging out with her husband and her dog Blue. She likes swimming, playing tennis and the violin, and going to rock concerts.


Donna Deligio-Mynster CDA, RDA, OA, BS

Donna is a graduate of Citrus Community College earning her Registered Dental Assistant Certificate in 1986 and associate of science degree in 1988. She extended her education by earning a bachelor of science degree from University of La Verne in 2010.

Mrs. Deligio-Mynster has worked in the dental field since 1986 with experience in chairside assisting and orthodontics. Mrs. Deligio-Mynster continued her education and earned her orthodontic assistant permit from Pasadena City College in 2016. Previously, Mrs. Deligio-Mynster was on the faculty at Citrus College and taught the dental specialties course in the RDA program.

Mrs. Deligio-Mynster enjoys spending time with her husband and Boxer puppy, travelling, shopping, hiking in Mammoth, and Italian cooking.

Claudia Pohl, CDA, RDA, FADAA, B.V.Ed.

Claudia has been in the dental assisting field since graduating from Chaffey College in 1975. She received her RDA in 1976 and her bachelor’s in vocational education in 1989. Her chairside assisting background includes general and periodontal dentistry. Recently retired, Ms. Pohl taught for 32 years, the last 17 at Citrus College where she served as full-time faculty and program director. Additionally, she has served the dental assisting community through the professional organization (PVDAS, CDAA and ADAA) at every level, beginning in 1974 as a student liaison while in school. She is currently serving as chair of the government relations committee for the CDAA. Married for 44 years, she has three children and two grandchildren and enjoys time with family, traveling, eating, reading and doing puzzles.


Jennifer Riddle, CDA, RDA, AS

Jennifer has been in the Dental field since 1993. She graduated from Citrus College Dental Assisting program in 1994. Her dental experience is in general and pediatric dentistry. She earned her Associates in Science degree from Carrington College in 2013. She is currently working towards her BA in Organizational Leadership at California Baptist University. She believes that learning never stops, and plans on continuing her education. She has been teaching dental assisting courses since 1997 starting with Radiology, and teaching full-time at the college level since 2006. One of her favorite things about teaching is the chance to touch someone’s life and help them find their purpose and future. She is married and a proud mother of 3, 2 boys and a girl.


Forms and Documents

RDA Application

RDA Application Checklist 

RDA Student Handbook 

Dental Viability Findings Report

Final Dental Viability Findings Report

Appendix Table of Contents

Appendix 1, AP 4021

Appendix 2, CODA February Report Letter

Appendix 3, CODA Standards

Appendix 4, Dental Assisting Needs Assessment

Appendix 5, IR ESR Data

Appendix 6, Public Forum Comments

Appendix 7, PSR 2012-13

Appendix 8, Advisory Minutes

Appendix 9, IR Demographic 2014, 2015, 2017

Appendix 10, January 2019 Scheduling Tool

Appendix 11, AB2637

Appendix 12, EPVR Committee Minutes

Appendix 13, History of the Dental Assisting Program

Appendix 20, Supplementary Evidence Collected

Appendix DA EPVR 2018