Dental Assistant Certifications (Which Ones Are Worth It)
Last updated:
Dental assisting is one of the most state-regulated roles in healthcare, which makes certifications confusing. Unlike a software cert that means the same thing everywhere, a Dental Assistant credential can be a national certification, a state license or permit, or a state-issued expanded function permit, and the rules differ in every state. The good news is that a small set of national credentials, led by the Dental Assisting National Board (DANB), are recognized almost everywhere and form the backbone of a strong resume.
This guide ranks the certifications that actually move the needle for a Dental Assistant: the national DANB credentials, the component exams that build toward them, the safety credentials every clinic expects, and the expanded function paths that let you bill for more procedures and earn more. Where a credential is really a state license or permit rather than a portable national certification, we say so, because listing it correctly matters to both hiring managers and applicant tracking systems.
Top certifications for a Dental Assistant
Certified Dental Assistant (CDA)
Dental Assisting National Board (DANB) · Intermediate
Best for: Working Dental Assistants who want the gold-standard national credential
The most widely recognized national certification in dental assisting and accepted for expanded duties in many states.
National Entry Level Dental Assistant (NELDA)
Dental Assisting National Board (DANB) · Entry
Best for: New assistants entering the field who want a recognized starter credential
Bundles the foundational DANB component exams and signals you are job ready before earning the full CDA.
Radiation Health and Safety (RHS) exam
Dental Assisting National Board (DANB) · Entry
Best for: Assistants who take dental x-rays or need a radiography credential
Documents radiography competency and is accepted by many state boards as proof you can legally expose x-rays.
Infection Control (ICE) exam
Dental Assisting National Board (DANB) · Entry
Best for: Assistants responsible for sterilization and operatory setup
Validates infection prevention knowledge that is central to daily chairside work and OSHA compliance.
Basic Life Support (BLS) for Healthcare Providers
American Heart Association (AHA) · Entry
Best for: Every Dental Assistant, since clinics almost always require it
A baseline safety credential dental offices expect and that is fast to earn and renew.
CPR/AED certification
American Red Cross · Entry
Best for: Assistants whose office accepts Red Cross rather than AHA
An accepted alternative to AHA BLS for the CPR requirement most dental offices enforce.
Certified Orthodontic Assistant (COA)
Dental Assisting National Board (DANB) · Advanced
Best for: Assistants who work in or want to move into orthodontic practices
Demonstrates specialized orthodontic competency that commands higher pay in ortho settings.
Certified Preventive Functions Dental Assistant (CPFDA)
Dental Assisting National Board (DANB) · Advanced
Best for: Experienced assistants performing preventive expanded functions
Certifies advanced preventive duties such as coronal polishing and sealants where states allow them.
Certified Restorative Functions Dental Assistant (CRFDA)
Dental Assisting National Board (DANB) · Advanced
Best for: Expanded function assistants in states that permit restorative duties
Validates advanced restorative skills that let qualified assistants take on higher-level chairside work.
State Expanded Functions Dental Assistant (EFDA) permit
State dental board (state license or permit, varies by state) · Advanced
Best for: Assistants seeking to perform expanded duties in a specific state
A state-issued permit, not a national certification, that legally authorizes expanded functions like placing restorations where the state allows.
State Dental Radiography license or permit
State dental board (state license or permit, varies by state) · Entry
Best for: Assistants required by their state to hold a radiography credential
In many states this state permit, not a national exam, is what legally authorizes you to take dental x-rays.
How to choose the right Dental Assistant certification
Start with your state, because dental assisting is regulated state by state and the credential that matters most is whatever your state board requires for the duties you want to perform. Look up your state board rules first, then map them to credentials: some states accept the DANB Certified Dental Assistant (CDA) directly, some require a separate state permit for radiography or expanded functions, and a few have very light requirements. The CDA is the safest national anchor because it is portable and widely recognized, so it is a strong choice almost everywhere even when your state does not strictly require it.
Then choose by where you are in your career. If you are new, earn CPR/BLS and the DANB component exams (Radiation Health and Safety and Infection Control), which also build toward NELDA and CDA. Once you are established, add expanded function credentials such as CPFDA, CRFDA, or a state EFDA permit to qualify for higher-paying duties, or a specialty credential like the Certified Orthodontic Assistant if you work in a focused practice. Do not pay for a credential your state does not recognize for the work you actually do.
How to list certifications on a Dental Assistant resume
Put a dedicated Certifications or Licenses section near the top, right under your summary, since hiring managers and applicant tracking systems scan for these quickly. Write each credential with its full name, the acronym, the issuing body, and the date or expiration, for example "Certified Dental Assistant (CDA), Dental Assisting National Board (DANB), 2025". Spell out the acronym at least once so the resume matches both "CDA" and "Certified Dental Assistant" when a recruiter or ATS searches for either.
Be precise about what is a national certification versus a state license or permit, and name your state where it matters, for example "Dental Radiography Permit, Texas State Board of Dental Examiners". List active CPR or BLS with its expiration so the office knows it is current. Mirror the exact wording in the job posting where it is accurate to your credentials, and never list a certification you have not actually earned, because dental offices verify these before hire.
Make your Dental Assistant certifications count on your resume
List your certifications where recruiters and the ATS will see them, then run a free ATS check to confirm your resume matches the job. No credit card.
Check my resume freeFree forever plan · No credit card required
Frequently asked questions
Do I need to be certified to work as a Dental Assistant?
It depends entirely on your state. Some states let you start chairside on-the-job training with no certification, while others require a state permit or a national credential before you can perform certain duties such as taking x-rays. Check your state dental board first. Even where it is optional, the DANB Certified Dental Assistant (CDA) makes you more employable and is portable if you move.
What is the difference between the CDA and a state license?
The Certified Dental Assistant (CDA) is a national certification from the Dental Assisting National Board (DANB) that documents your knowledge and is recognized across many states. A state license or permit is issued by your state dental board and is what legally authorizes you to perform specific duties in that state. Many assistants hold both: the national CDA for portability and a state permit for radiography or expanded functions.
Which certification should I get first?
Start with CPR or BLS, which nearly every office requires, then earn the DANB Radiation Health and Safety and Infection Control component exams. Those component exams build toward the National Entry Level Dental Assistant (NELDA) and the full Certified Dental Assistant (CDA), so they are efficient first steps that also satisfy common state radiography and infection control requirements.
Are expanded function certifications worth the cost?
Yes, if your state recognizes them and your office uses those duties. Expanded function credentials such as the CPFDA, CRFDA, or a state EFDA permit let you perform and bill for higher-level procedures, which usually means higher pay. They are only worth it where the state actually allows the duties, so confirm your state rules before paying for the exam.
