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Radiation Health and Safety (RHS) DANB Exam Review for Dental Assistants, Package of 3; total of 6 hours – On Demand Webinars


Dental  Assistants taking x-rays (radiographs) are mandated by many states to be certified by the Dental Assisting National Board (DANB)* in Radiation Health and Safety (RHS). Check your state regulations or the DANB website ( https://www.danb.org/Meet-State-Requirements/State-Specific-Information.aspx ) for the requirements that apply to you. 

This course was evaluated by previous participants. Here is the overall scoring. See product reviews for responses from those who gave us permission to publish their comments.


This on-demand content is available for a fourteen-day subscription from the date of purchase. If additional time is needed you may re-purchase an additional fourteen days. To receive CE credit you must complete the course as determined by the time you are actively viewing the video and successfully passing a quiz.

After purchase you will be sent instructions on how to access content on Panopto our video hosting service. Check your spam folder if you do not receive it within an hour. Please note, sharing this On-Demand content is prohibited.

Original date: August 31, 2020
Expiry date: August 31, 2023

NOTEPLS does not claim that taking this review class will guarantee the candidate will successfully pass the exam. Extensive additional study may be required and is strongly recommended.

* Some states offer their own certification exam.  Be aware however that you must be certified by DANB if you want your certification to be recognized in more than one state.


On Demand



This 3 part comprehensive review course is designed to assist the experienced dental assistant. Course content and study guidance provide one of the many available resources to use for test preparation. Depending on the experience and knowledge of the participant, it is strongly recommended to use several resources to prepare for the exam. 

Course Objectives: The participant will be able to:

  1. understand the physics of radiology
  2. identify the components and production of x-rays
  3. relate biology to radiation exposure
  4. recognize the importance of patient safety
  5. describe safety measures for the patient for radiation protection
  6. understand terminology related to radiology
  7. relate radiation exposure to patient and operator safety
  8. identify the benefits and disadvantages of digital vs film technique and exposure 
  9. understand types of radiographic surveys related to patient selection
  10. identify the use and benefits of extraoral projections
  11. recognize components of processing and mounting film
  12. differentiate radiolucent and radiopaque oral structure
  13. understand the concepts of contrast and density
  14. identify dental, head and neck anatomy
  15. identify radiographic image exposure errors
  16. understand panoramic exposure and identify anatomy
  17. recognize 3D (cone beam) imaging
  18. evaluate different types of dental materials by degrees of radiopacity
  19. understand the importance of infection prevention
  20. identify common errors in processing film
  21. understand test taking strategies and apply it to the RHS exam
  22. take practice exam and self correct by using reference materials

Course Materials:  11 Course handouts provided with email confirmation upon registration.

*sample test questions
*study guide and web site references
*home study guide of dental and oral anatomy including anatomic landmarks
*guidance and support in the DANB exam application process

About the DANB Exam 
Click on the link below or copy and paste to find out the latest information on the RHS exam

DANB.org or 800-367-3262

Qualifications of the Instructor: Ms. Barbara Sheerin

Barbara Sheerin, RDH, M. Ed.  Professor of Radiology has decades of experience teaching radiology to dental assistants and dental hygienists at Colleges in Massachusetts.  She is a gifted speaker with a unique teaching style that makes complex concepts easier to understand.

Quotes from her audiences:

“Very knowledgeable and compassionate speaker.” 
“Great audience interaction and energy.” 
“Very helpful during hands-on!” 
“Learned several new tips to improve on.”
“Very relaxed and easy to listen to.” 
“Answered all questions that everyone asked.”
“I never heard her before, liked her sense of humor!”

Disclaimer: Participants must be aware that there may be potential risks of using limited knowledge when incorporating techniques and procedures into practice when they have not received supervised clinical experience or demonstrate competency in taking radiographs (X-Rays). This course is strictly a guide to prepare for the RHS exam and does not guarantee results.

CE Provider: Professional Learning Services, LLC (PLS) CT
PLS is an ADA CERP recognized provider (111/2021 – 12/31/2025). ADA CERP is a service of the American Dental Association to assist dental professionals in identifying quality providers of continuing dental education. ADA CERP does not approve or endorse individual courses or instructors, nor does it imply acceptance of credit hours by st
ate or provincial Boards of Dentistry. Concerns or complaints about a CE provider may be directed to the provider or to the Commission for Continuing Education Provider Recognition at ADA.org/CERP  

PLS is designated as an approved Provider by the American Academy of Dental Hygiene, Inc (1/1-12/31/24)  Retain this record as verification.      



On Demand




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