How to Retain the Dental Assistants You Hire
Hourly pay makes the outside option a job posting down the street — here's what a practice can actually do about it.
There's no verified national turnover rate for dental assistants, and no dental-specific cost-of-turnover multiplier either — treat any specific figure you see quoted for either one as someone's estimate, not data. What's actually within a practice's control is narrower and more concrete: the pay basis, and whether the practice pays for the credentials it's already relying on an assistant to hold.
The outside option is a posted hourly rate, not a career change
Most dental assistants are paid hourly, so a gap between what you pay and what a nearby practice is posting isn't an abstract comparison — it's two numbers an assistant can put side by side.
Leaving doesn't mean leaving the field or starting over; it means answering a posting down the street that pays more for the same work.
See dental assistant hourly pay by metro for what practices in a given market are actually posting.
If your rate has fallen behind what's advertised nearby, that gap is a more useful number to act on than a guessed turnover percentage.
Pay for the credential your practice is already relying on
An assistant who holds the DANB CDA, a state registration, or a radiography permit is doing something for the practice beyond the base chairside role, and each credential earns its keep differently: the CDA signals a level of competency you didn't have to train from scratch and lowers the hiring risk that came with them; a state registration, where one is required, is the legal authorization to work chairside at all; and the radiography permit — a separate credential from either — is specifically what lets them take x-rays without you carrying a coverage gap while someone else earns it.
If the practice benefits from those credentials every shift, the pay should reflect it — not just at the offer, but as each one stays current.
BLS doesn't publish a separate wage for certified versus uncertified assistants, so there's no fixed percentage to anchor a raise to — see does CDA certification raise your pay for what the data does and doesn't say.
The absence of an official number isn't a reason to pay nothing for the credential; it's a reason to set the number locally rather than pretend one is published.
Expanded functions raise pay and production at the same time
Expanded-function duties are the one lever here that isn't just a cost.
Where your state permits it, an assistant credentialed for functions like coronal polishing, sealants, or restorative finishing can do more in the same appointment — which is also more the chair can bill without adding a chair.
Paying appropriately for that scope is closer to sharing the value it creates than granting a raise out of goodwill.
See do EFDAs earn more for how this shows up in pay data — there's no fixed national premium, but expanded-function assistants generally earn more than assistants doing only basic chairside work.
If you have an assistant weighing whether to invest the time in an expanded-function course, supporting that investment (in time, fees, or both) and paying for the resulting scope once they hold it is a retention lever that also raises what your practice can produce.
Signs an assistant is comparing their options
- Asks whether you'll match a specific rate they've seen posted at another practice
- Raises a course or exam for a radiography or expanded-function permit and whether the practice will support it
- Asks whether pay changes once they hold a credential, rather than assuming it already has
- Mentions letting a radiography or expanded-function permit lapse instead of renewing it with your practice
- Stops bringing up which credential or permit they're working toward next
Questions employers ask
What is dental assistant turnover, really?
There's no verified national turnover rate for dental assistants, so treat any specific percentage you see quoted as an estimate, not data — and the same goes for any "cost of turnover" multiplier. What's better grounded is the mechanism: assistants are paid hourly, so a posted rate down the street is a direct, easy comparison, and paying for the credentials a practice already relies on is a concrete lever, unlike a guessed turnover number.
If I match a competitor's posted rate, is that enough to keep someone?
It closes the most visible gap — the one against a posted rate nearby — but it's not the only lever. Paying for the CDA, radiography, or expanded-function credentials a practice already relies on an assistant holding, and paying more once someone takes on expanded-function duties, address value the practice is already receiving that matching a rate alone doesn't specifically reward.
Does paying for CDA certification actually pay for itself?
There's no official BLS premium for CDA-certified assistants to cite, so there's no fixed percentage to promise. What the credential does do is lower hiring risk and often overlap with the radiography permit — value the practice is already getting from someone who holds it, which is the case for paying them accordingly rather than assuming the credential speaks for itself.
Should pay change once an assistant earns an expanded-function permit?
Yes, generally — an expanded-function credential raises what an assistant is legally permitted to do in the states that allow it, which raises what the same appointment can produce. Expanded-function assistants generally earn more than assistants doing only basic chairside work, though there's no fixed national premium to quote.
More hiring resources
Filling an assistant gap?
Post the role while you fix what's pushing your current assistants to compare their rate elsewhere.