Dental Assistant Training Requirements and Programs Oregon

State specific dental assistant training requirements and programs for Oregon, including links to important governing body websites and course providers.  Find dental assistant schools in Oregon.

Oregon has many classifications of Dental Assistants

  1. Dental Assistant, with or without Radiologic Proficiency Certification
  2. Expanded Function Dental Assistant
  3. Expanded Function Dental Assistant with Restorative Functions Certificate
  4. Expanded Function Orthodontic Assistant

Dental Assistant

In Oregon, Dental Assistants are not licensed but must be certified in order to take x-rays or to perform certain Expanded Functions.  Basic supportive tasks may be performed by Dental Assistants under the direct supervision of a licensed dentist.  In order to take x-rays, a Radiologic Proficiency Certification must be obtained.

To obtain Radiologic Proficiency certification, you must:

  • Submit an application form with appropriate application fee
  • Complete a course of instruction approved by the Oregon Health Authority, Oregon Public Health Division, Office of Environmental Public Health, Radiation Protection Services, or the Oregon Board of Dentistry
  • Pass the written Dental Radiation Health and Safety Examination administered by the Dental Assisting National Board, Inc. (DANB), or a comparable exam authorized by the Board
  • Pass a clinical exam approved by the Board and graded by the Dental Assisting National Board, Inc. (DANB), or any other testing entity authorized by the Board.  The exam consists of exposing, developing and mounting a full mouth series of radiographs (14 to 18 periapical and 4 bitewing radiographs) within one hour and under the supervision of a person permitted to take radiographs in Oregon. No portion of the clinical examination may be completed in advance, and a maximum of three retakes is permitted.  The radiographs should be taken on an adult patient with at least 24 fully erupted teeth. The radiographs must be submitted for grading within six months after they are taken.

Expanded Function Dental Assistant

Dental Assistants who have been certified in other states to perform expanded functions or to take x-rays, and have at least 1,000 hours of work experience in the past two years performing these functions may qualify for certification by credential.

To receive certification as an expanded function dental assistant:

1.  Submit a completed application with the appropriate application fee

2.  Submit proof of Certification of Radiologic Proficiency

3.  Proof of one of the following:

  • Satisfactory completion of a program accredited by the Commission on Dental Accreditation of the American Dental Association; or
  • Passage of the Basic or CDA examination, and the Expanded Function Dental Assistant examination, all administered by the Dental Assisting National Board, Inc. (DANB); and Provide endorsement from a licensed dentist stating that the applicant has completed clinical requirements

Expanded Function Dental Assistant with Restorative Functions Certificate

To receive a Restorative Functions Certificate, an Expanded Function Dental Assistant must also complete a program accredited by the Commission on Dental Accreditation of the ADA, and pass the Western Regional Examining Board’s Restorative Exam or equivalent within the past 5 years.

Expanded Function Orthodontic Assistant

To receive certification as an expanded function orthodontic assistant:

Complete an application with appropriate fee and satisfactory evidence of one of the following:

  • Complete a program in dental assisting accredited by the American Dental Association Commission on Dental Accreditation; or
  • Pass the Basic, CDA or COA examination, and Expanded Function Orthodontic Assistant examination administered by the Dental Assisting National Board, Inc. (DANB), and certification by a licensed dentist that the applicant has successfully completed orthodontic clinical requirements.

Certification by Credential

You may be able to receive certification by credential if the training and certification requirements of the state in which you’re certified is substantially similar to Oregon’s requirements -OR- if you have worked for at least 1,000 hours in the past two years in a dental office where such employment involved to a significant extent the functions for which certification is sought.

If you meet one of the above, you shall be evaluated by a licensed dentist, using a Board approved checklist, to assure that you’re competent in the expanded functions.

Helpful Links:

You may find additional information through these links to your state’s official dental board page, or one of our sponsors.

Oregon Board of Dentistry –

Dental Assisting Requirements State Statutes –