Delaware Dental Assistant Requirements

Radiography Requirements

In order to legally operate dental x-ray equipment and perform dental radiographic procedures under the supervision of a licensed dentist in Delaware, a dental assistant must meet the requirements shown below.

Radiography Requirements

A dental assistant must hold a state certificate as a Dental Radiation Technician or a state certificate recognizing DANB Certified Dental Assistant (CDA) certification from the Delaware Division of Public Health/Office of Radiation Control (Delaware ORC).

To qualify, one must:


Pass the DANB Radiation Health and Safety (RHS) exam, OR

Hold current DANB CDA certification exam 


Submit a completed state certificate application (Form R16-N) to the Delaware ORC, AND 

Be at least 18 years of age to receive the state certificate

Currently, the State of Delaware has no provisions for recognizing certificates issued by other states. To obtain Form R16-N, contact the Delaware ORC, Jesse Cooper Building, 417 Federal St., Dover, DE 19901; phone (302) 744-4546; or visit the website: Forms can be accessed at

Note: The Delaware ORC has discontinued the Delaware Dental Radiologic Technology (DDRT) exam, which was a state-specific exam equivalent to DANB's RHS exam offered prior to December 31, 2015. As of January 1, 2016, individuals who wish to become certified as Delaware Dental Radiation Technicians and who do not hold DANB's CDA certification must apply to DANB to take the DANB RHS exam. Candidates who passed the DDRT exam prior to December 31, 2015 may still use their DDRT exam passing result to qualify for the Dental Radiation Technician certificate.

(If you are enrolled at a Vocational Technical High School, you may be eligible to have your state certification application fee waived – contact the Delaware ORC for more information.)

Dental Assisting Job Titles and Requirements

Dental Assistant

In the state of Delaware, competency of dental assistants in specific duties is determined by the supervising dentist. The dentist is given full responsibility in deciding the scope of work to be allocated to the dental assistant.

Adequate training of dental assistants is solely the responsibility of the dentist.

In summary, The Delaware Board of Dentistry and Dental Hygiene places full responsibility for the work done by dental assistants directly upon the dentist.

Additional Resources

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