The Dentist Leaves the Building: Supervision, Diagnosis, and Two Improper Orders
Renee is an Ohio-licensed dental hygienist with six years of experience in a two-chair general practice in Franklin County. At 9:15 a.m. Dr. Alvarez examines Mr. Patel, writes 'prophy, bitewings, fluoride' in the chart, and at 9:45 leaves for a hospital consultation across town, saying he is reachable by cell for the next three hours. Renee seats Mr. Patel at 9:50. The bitewings she exposes show a distinct radiolucency on the mesial of tooth #30. At 10:40 a man Renee has never met walks in with a swollen jaw and asks to be seen immediately. At 10:55 Dr. Alvarez texts: 'If Patel needs it, give him a carpulect of lidocaine before you scale, and if you see decay just place a temporary so he is comfortable.' Renee holds no local anesthesia permit and has no restorative training.
1. Identify the supervision level in effect after Dr. Alvarez leaves the office, and explain what Renee may and may not do about the radiolucency.
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Supervision level. Once the dentist leaves the premises but has already examined the patient and issued a specific written order, Renee is working under general supervision: the authorization exists, the dentist is not on site, and he remains available for consultation. The authorized prophylaxis, radiographs, and fluoride may be completed.
The radiolucency. Interpreting a radiograph and diagnosing caries is the practice of dentistry. Renee may observe and report, not diagnose. Practical boundaries:
- She may tell the patient that a finding was noted and that Dr. Alvarez will review the image before any treatment decision.
- She must not say "you have a cavity on #30" as a diagnosis, and must not advise a specific restoration or schedule restorative treatment on her own authority.
- Document objectively: tooth, surface, image type, and that the image was referred to Dr. Alvarez for evaluation, with time and method of notification.
- Ensure the review actually happens - a documented call-back, an image sent to the dentist, or the patient rescheduled - rather than a chart note that no one reads.
If the dentist cannot review before the patient leaves and the patient wants an answer that day, the defensible move is to say the dentist will follow up and to document that commitment. Silence or invented reassurance is where hygienists get into trouble.
2. The 10:40 walk-in with a swollen jaw. What may Renee legally do, and what should she actually do?
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General supervision does not reach this patient. The legal predicate for hygiene services is that the dentist has examined the patient and authorized the service; neither has happened. Renee therefore cannot examine, diagnose, scale, or begin any treatment on this man.
What she can do within scope and ordinary prudence:
- Obtain a health history, record the chief complaint, duration, and any fever or difficulty swallowing, and take vital signs if equipped - data collection, not diagnosis.
- Contact Dr. Alvarez on his cell immediately and ask whether he will return or direct the patient elsewhere.
- If he will not return, arrange urgent referral. Facial swelling with systemic signs is an emergency that may need incision and drainage or antibiotics; hygienists do not prescribe in Ohio, and a phone instruction to "call in amoxicillin" is not something Renee can execute.
- Document the encounter, the advice given, the referral destination, and that the patient left understanding the plan.
What she must not do is the tempting thing: "we'll just do a quick prophy while you're here," or seat him and start a visual exam as if the dentist's standing order covered him. It does not. Declining to treat is not abandonment when a documented referral is made.
3. Evaluate the two instructions in the text message and describe Renee's obligations.
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Both instructions exceed the legal scope, and a dentist's order cannot enlarge it.
Local anesthesia. Ohio allows hygienists to administer local anesthesia only after the additional education and training the board requires and only while holding the corresponding permit from the State Dental Board, under the supervision level the rule specifies. Renee has no permit. She cannot give the carpulect, period - not "just this once," not because the dentist texted it.
Placing a temporary. Removing caries and placing any restorative material, even a temporary, is the practice of dentistry. It is not a dental hygiene function in Ohio. A dentist may delegate defined functions to appropriately trained auxiliaries under board rules, but hygiene licensure does not include operative restorative procedures. The phrase "so he is comfortable" does not convert a restoration into a hygiene service.
Renee's obligations.
- Decline explicitly and promptly, by phone rather than text, so there is no ambiguity about whether the message was received.
- Document the order and the refusal, factually and without editorializing.
- Manage the patient within scope: explain that the dentist will address his restorative needs, offer to reschedule, and get the dentist back to the chair if the patient is in discomfort.
- Recognize the exposure: performing a delegated act outside her scope is itself a violation that can support board discipline for her and improper delegation findings for the dentist. Pressure from an employer is not a defense.