Dental Assistant Interview Questions
Sample questions for the phone screen and the on-site — and what a strong answer sounds like.
The best interview questions to ask a dental assistant are the ones a résumé can't answer: how they run a sterilization turnaround between patients, what they do when the schedule has already slipped, and how they treat the line between their permit and the duties your state requires one for.
Below are sample questions for each stage of hiring — a short phone screen, chairside judgement, behavioral questions, and credentials and scope — with what a strong answer sounds like.
Before the interview
Before the interview, verify any DANB CDA claim with DANB, and any state registration or radiography permit with the state board, by name.
Doing it first means the interview is about fit rather than paperwork.
Decide in advance what your state actually permits an assistant to do without an expanded-function permit — CDA vs. RDA is a good starting point — so you do not ask about duties that are not on the table where you practise.
Run a short phone screen before you give up chairside time, and keep it to logistics: schedule fit, your posted pay range, credential status, and a realistic start date.
Keep the questions to the job, too.
The EEOC treats inquiries about marital status, children, religion, age or national origin as potential evidence of discrimination even where they aren't flatly banned, and under the ADA you may ask before an offer about the ability to perform job-related functions — but may not conduct a medical examination or ask whether an applicant has a disability, or about its nature or severity.
Two more phone-screen traps: ask "are you authorized to work in the U.S.?" rather than whether a candidate is a citizen — the citizenship question is the one the EEOC says most employers should not ask before an offer, with work eligibility verified on Form I-9 after hire — and don't ask what they're paid now.
California, New York, Illinois, Massachusetts, Washington, Colorado and Washington DC all bar employers from seeking an applicant's wage or salary history, though Massachusetts and Washington let an employer confirm it after an offer that includes compensation (in Washington, also if the applicant volunteered it).
Ask what they're looking for against your posted range instead.
Our salary history and illegal interview questions guide has the full do-not-ask list.
The candidate's side of this conversation is covered in our career guide to dental assistant interview questions — useful for seeing what a prepared answer sounds like.
Phone screen questions
Does our schedule — [days and hours] — work for you, and is anything on it a hard no?
What to listen for: A direct yes, or a constraint named on the call.
Availability is the cheapest thing to learn over the phone and the most expensive to discover in week three, after the rotation is built around the answer.
Where do you stand on credentials — DANB CDA, your state registration, the radiography permit, any expanded functions — and which state issued each one?
What to listen for: Named credentials with a state attached, not a general "I'm certified."
Gaps aren't automatically disqualifying — where your state allows on-the-job training, an unpermitted hire can start on base duties — but you want to know which permits the role waits on before the on-site.
This role pays $[X]–$[Y] an hour, [days] days a week. Does that work for you?
What to listen for: A direct answer, not a deflection — if the range doesn't work, the phone call is where you both want to find out.
Ask what they're looking for rather than what they're paid now; the second question is barred in the salary-history states named above.
When could you start, and are you wrapping up notice somewhere?
What to listen for: A date, not a vibe.
"Two weeks" or "once my permit renews in March" is planable; "whenever" usually means an open-ended search, which tells you how long temp coverage has to stretch.
Chairside judgement
Walk me through your sterilization routine between patients, start to finish.
What to listen for: A specific sequence — instrument handling, autoclave cycle, surface disinfection, setup for the next patient — not a general "we follow protocol" answer.
Vague answers here are the ones to probe further, since this is the duty with the least room for error.
A patient is anxious and the doctor is running behind. What do you do?
What to listen for: Concrete de-escalation habits — explaining what's happening, checking comfort, keeping the patient informed — rather than "I'd just reassure them."
Look for evidence they've actually done this, not just would.
Schedule and pressure
The schedule is running 20 minutes behind and you're setting up for the next patient. What's your priority?
What to listen for: A real trade-off — what gets prepped first, what gets communicated to the front desk or the doctor.
Anyone who says they just "move faster" hasn't been tested by a real day.
How many patients a day have you typically supported, and in what kind of practice?
What to listen for: Concrete numbers and setting (general vs. specialty), and whether it matches your practice's pace.
A DA used to a slower specialty schedule may need an adjustment period in a high-volume general practice.
Behavioral questions
Tell me about a time you caught a mistake — yours or someone else's — before it reached the patient.
What to listen for: A specific example and what they did about it, including whether they told someone.
Score every behavioral answer the same way: a specific situation, the action they took, and how it ended.
Candidates who can't produce an example, or who frame catching errors as someone else's job, are worth a follow-up.
Tell me about a time the schedule fell apart — a no-show, a double-booked chair, an emergency walk-in. What did you actually do?
What to listen for: Their actions, in order: what they re-sequenced, who they told, what got said to the patients already seated.
"We all just jumped in" is a compliment to the team and a non-answer — ask "what did you do?" again until the answer is theirs.
Describe a time you disagreed with the dentist about something chairside — an instrument, a setup, how a procedure was running. What happened?
What to listen for: Whether they raised it, how, and whether the relationship survived raising it.
You want the assistant who can tell the doctor "the sterility indicator didn't run" without drama; deference that never speaks up is its own clinical risk.
Tell me about the hardest patient interaction you've handled — not necessarily an angry one, the hardest one.
What to listen for: A specific patient, what they said, and what changed as a result.
Note whether they knew when to hand the conversation to the dentist or the front desk — knowing where that line sits is most of the skill.
Credentials and scope
Which certifications and permits do you currently hold — CDA, state registration, radiography, any expanded functions?
What to listen for: Specifics, not a general "I'm certified."
Ask which state issued each permit, since radiography and expanded-function permits are commonly state-specific and may not transfer — a new state can mean a new exam or course.
Has what you're allowed to do differed between states or practices you've worked in?
What to listen for: Awareness that scope varies at all.
A DA who's noticed the difference between practices or states will be careful about the boundary; one who assumes it's always the same may not check before doing something outside their permit.
Worth a second look
None of these is disqualifying on its own.
Each is worth a follow-up question.
- Vague or inconsistent about which state issued their CDA, registration, or radiography permit.
- Describes sterilization protocol in general terms rather than a specific sequence.
- Can't describe how they'd flag a mistake or an unusual finding to the doctor.
- No questions about your schedule, patient volume, or support for further credentialing.
- Uses "CDA" and their state's registration interchangeably without noticing they're different things.
- Answers the behavioral questions entirely in the hypothetical — "I would…" — after being asked for a specific incident.
After the interview
Verify every claimed credential — CDA, state registration, radiography permit, any expanded-function permit — with its own issuing body before extending an offer.
Each is checked separately; none of them vouches for the others.
If you're hiring across a state line, confirm what actually transfers.
Radiography and expanded-function permits in particular are commonly state-specific and may require a new exam or course, which affects the realistic start date.
If the next step is a working interview — a trial shift at the chair — pay the candidate for those hours.
In 2018, the U.S. Department of Labor found that a Nashville dental practice violated federal minimum wage requirements by requiring job candidates to do a "working interview" without paying them for the hours worked.
How to structure, schedule and pay a trial shift is covered in our working interviews guide.
The Dental Assistant Hiring Market Right Now
The dental assistant openings you are competing with, from the 3,272 active listings on DentistryHires as of November 14, 2026.
Employers with the most openings
Where the openings are
- California547
- Texas407
- Florida315
- Washington129
- Virginia113
Pay employers post
- Median $24 an hour; the middle half of posted pay runs $22–$27 (2,076 listings that state an hourly rate)
- Median $50,000 a year; the middle half of posted pay runs $46,500–$55,000 (18 listings that state a salary)
- 64% of dental assistant listings state any pay at all, so posting a range helps yours stand out.
Benefits listings name
- Paid time offnamed in 81%
- Health insurancenamed in 74%
- 401(k) plannamed in 60%
- Dental or vision coveragenamed in 53%
- Paid or provided CEnamed in 31%
- Employee discounts or free dental carenamed in 26%
- Advancement opportunitiesnamed in 14%
- Training providednamed in 12%
Source: active dental assistant listings on DentistryHires, updated daily. Pay figures use only listings that state pay (midpoint of each posted range) and are hidden when one employer posted most of them. Benefits count listings that name the benefit; a listing that doesn’t mention one may still offer it.
See the listings →Hiring now?
Post the role and start seeing candidates who are actively looking.
More for Hiring a Dental Assistant
- How to Hire a Dental Assistant →
- Dental Assistant Job Description Template →
- What to Pay a Dental Assistant →
- Do You Need a Certified or Permitted Dental Assistant? It Depends on Your State →
- Hire a Certified Assistant or Train on the Job? →
- How do you look up a dental assistant license or registration? →
- How to Retain the Dental Assistants You Hire →
- Career guide: What Does a Dental Assistant Do? →