The Saturday Crown and the Unlicensed Assistant
Dr. Ramos runs a small practice in Tucson. On a busy Saturday she is short-staffed. Her dental assistant, Maya, has completed an accredited assisting program but has not yet passed the Arizona radiography (RHS) examination, so her certificate is pending. A patient, Mr. Cole, arrives with a fractured cusp on tooth 30 and needs a same-day crown prep. Dr. Ramos asks Maya to take a periapical and bitewing series, place the matrix band, and finish the provisional crown after the doctor seats it. Maya is nervous about the radiographs. The office also has an uncertified front-desk employee, Ben, who sometimes "helps" by exposing images when the office is slammed. Dr. Ramos tells Maya to "just take the X-rays, it's fine, I'll supervise."
1. Identify the scope-of-practice and licensure issues raised. Can Dr. Ramos lawfully direct Maya to expose radiographs before her RHS certification is issued?
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Issue 1 - Radiograph exposure requires certification. In Arizona, exposing dental radiographs is a delegated function that requires the assistant to hold the appropriate Board-issued radiography certification. A completed assisting program alone does not authorize exposure; the certification must be in hand. Dr. Ramos's supervision does not cure a missing credential - supervision authorizes delegation of permitted functions, it does not create authority the assistant does not have.
Issue 2 - Ben. An uncertified front-desk employee may not expose radiographs at all. Allowing Ben to do so is a separate violation, and the dentist is responsible for functions delegated in her office.
Conclusion: Dr. Ramos may not have Maya expose the series until the RHS certification issues. She may have Maya take the radiographs only if another properly certified person exposes them, or she may expose them herself. The provisional crown and matrix work may be delegated only to the extent the Board rules permit for an assistant at Maya's credential level.
2. Mr. Cole's crown cannot wait for the certification. What lawful staffing options does Dr. Ramos have to complete the radiographs and the provisional today?
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Options:
- Expose the images herself. The dentist is licensed and may expose radiographs; this is the simplest fix.
- Bring in a certified assistant - a hygienist or another RHS-certified assistant - for the radiographs.
- Defer only the imaging and proceed with clinical steps that do not require the missing credential, documenting why imaging was delayed.
What she may not do: tell Maya to expose anyway, or let Ben expose. "I'll supervise" is not a lawful substitute for the credential.
Practical reasoning: The exam tests whether you separate supervision from credentialing. A dentist can delegate only functions the delegate is credentialed to perform. The correct answer protects the patient's care timeline without creating an unlicensed-practice violation.
3. If Maya exposes the radiographs anyway at Dr. Ramos's instruction, who faces exposure to discipline and on what theory?
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Both may face consequences, on different theories.
- Maya may be subject to Board action for performing a delegated function without the required certification - practicing beyond her authorized scope.
- Dr. Ramos faces discipline for aiding and abetting unlicensed/uncertified practice, for failing to supervise properly, and for delegating a function she knew Maya was not credentialed to perform. Dentists are accountable for the acts of personnel under their direction.
Key distinction: The dentist's liability is not vicarious only; it is direct - she ordered the act. Documenting the credential status of every delegate before assigning a task is the preventive control. The Board looks at whether the dentist had actual or constructive knowledge of the missing credential; here she plainly did.