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Dental Therapists are making a difference in my practice and in my state


As a dentist and owner of a multi-site practice in Minnesota, I’m writing to respond to the letter from the president of the Arizona Dental Association, Dr. Robert Roda entitled, “Don’t follow Minnesota’s failed dental therapist experiment,” published on March 29.  A number of his comments about the Minnesota experience with dental therapy are, at best, misleading.  I’d like to set the record straight as a private practice dentist and an employer of dental therapists.  For me, dental therapy has been an important tool to help expand care to more people, especially patients on Medicaid, and a way to grow my practice.

John T. Powers

John T. Powers

Dr. Roda claims dental therapists “solve nothing.” Tell that to the patient in a community health center dental clinic who is able to get his tooth ache handled with a shorter wait time because the dental therapist was available to treat him weeks before a dentist could have seen him. Tell that to the mother in rural Minnesota who is able to get her children’s needs addressed regularly and avoid them developing decay or needing painful extractions. Tell the thousands of patients on Medicaid who are now receiving regular care that having a dental therapist treat them “solves nothing.”

Dr. Roda also naively notes that dental therapists have not led to lowered dental costs in Minnesota.    We authorized dental therapists in Minnesota to address two major problems:  too few dentists were accepting Medicaid patients and in most of our counties – many of them rural – we had a dentist shortage.  Dental therapists have started to make an impact on both of these fronts.  Because of dental therapists’ lower labor costs (about 30 – 50% the average hourly wage of dentists in my state), those of us in private practice who have hired them are finding it financially viable to serve more Medicaid patients – we are not taking such a hit on the state’s low Medicaid reimbursement rate.  Federally qualified health centers using dental therapists are able to use the savings in staff salaries to provide more free and low-cost care to the uninsured.  And a number of practices are deploying dental therapists to rural community locations because it’s more affordable than sending a dentist. In fact, dental therapists are being used to address what Dr. Roda called the “real challenges that parents face getting to the dental office.”  Children’s Dental Services, the largest nonprofit dental operation serving children in my state, sends dental therapists to low-income schools to fill decayed teeth—at a substantially lower cost than what it would take to send a dentist.

In Minnesota the Medicaid agency decided to reimburse dental therapists at the same rate as dentists.  In Arizona, the precedent is to reimburse midlevel providers at a lower rate.  That would offer the state budget immediate savings.  But let’s think in the long-term.  Right now the most expensive member of the dental team is performing routine restorations that a qualified, lower-cost provider could perform.  That’s highly inefficient and one factor in why dental costs are high.  If dental therapists become a fixture in Arizona’s dental delivery system, the cost savings they would bring to dental practices would help keep dental costs from continuing to spiral up – as labor is the most expensive component of a dental practice, while also providing care to more lower-income people.

Apple Tree, another nonprofit provider, has a mobile team that provides on- site care at a veterans nursing home.  Without Minnesota’s law they would have to hire a dentist to do the thousands of restorations now performed by a dental therapist, at an additional cost of $52,000 annually.

For all these reasons and more, dental therapy graduates are in great demand and dentists are hiring them as quickly as we can train them.

Arizona, like Minnesota, has a significant access problem.  Solving it will take a multi-faceted approach.   Making dental practices more cost-efficient and geographically flexible is part of the solution – an important part.  Dental therapy can help get us there.  Medical practices and their patients have benefitted from incorporating nurse practitioners and physician assistants for decades.  Arizona’s dentists and patients deserve – and need – the same opportunity to benefit from midlevel providers that thousands of Minnesotans have had.

I would say to those Arizona dentists who believe it won’t help their practices – don’t hire them.  But don’t deprive your colleagues—especially those working in safety net clinics and rural communities—of the opportunity to improve their practices and the health of their patients.

John T. Powers is a dentist who is licensed to practice in Minnesota.


The views expressed in guest commentaries are those of the author and are not the views of the Arizona Capitol Times.


  1. Here in Arizona we have dental practitioner Paradise. There is no meaningful oversight of “professional practiced”. Dentists charge whatever they feel like. Ethics is a word from Swahili. This is MY experience with about 6 or 7 dentists. Sad but true. Even my Congressman is a dentist. Check the things he does for an idea of dentists in Az.

  2. Dr Powers, among other things, you are helping perpetuate the myth that lower-cost providers = lower fees to patients. Most proponents of dental therapists cite their lower pay and call it lowering the cost of dentistry as a benefit when speaking about patients who avoid the dentist because of the fear of high fees. When patients hear that dental therapists are lower-cost labor they believe they are hearing “lower fees”, while business people hear “lower overhead”. We both know which one it is…and it is not lower fees for patients. Dental therapists do not equal lower fees to patients…so the private practice employment of dental therapists is for lower overhead which translates to higher profits. I’ll grant you that the Medicaid reimbursements require lower overhead to survive, but that is a different discussion.
    Your examples based on Minnesota are irrelevant in Arizona, as the bill for dental therapists in Arizona has nothing in common with your dental therapist legislation. In Arizona, and most other states, they are going purely “free-market” and their bills create zero obligations to address any issues of Access to Care. We both know that about 2/3 of the DTs in MN are employees in private practice…and because there is a limited supply, every private practice employment of a dental therapist deprives a public health or non-profit setting from the benefits of a dental therapist. In addition, we both know that the obligation to address Access to Care issues by employed dental therapists in MN is only “more than 50% of their workload”. I cannot find a definition of “workload” in that legislation… Is it a count of patients? Procedures? Value of prodedures? Time spent? Number of appointments? I can imagine that the private practice employers have many opportunities to maximize practice profits by manipulation of that definition. And how lucky! There is no state oversight on that. Along the same lines, the reports on dental therapists are almost entirely about the 1/3 employed in public, community, and non-profit settings. What is the impact of the 2/3 employed in private practice? Does anybody know? And why are you the only dentist in MN promoting dental therapists? What do the others have to say? (I’ve read several that aren’t as entrepreneurial as you, and they find the Medicaid reimbursements are just too low to make it work, even with lower-cost dental therapists.)
    Lastly, as with almost all other proponents of dental therapists, you bragged about the dental therapist achievements in the non-profit sector… not about the achievements in the private sector. That is a recurring and telling sign that “free-market” and private sector employment of dental therapists is NOT how a state should address Access to Care issues. I cannot speak for Dr Roda, but I will say that dental therapy legislation as proposed in Arizona will approximately “solve nothing”.

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