The Assistant, the Sensor, and the Prescription Pad
A hygienist is the only licensed clinical provider in the office on a Saturday morning; the dentist has stepped out for a 45-minute lunch. An uncertified dental assistant is asked to take a full-mouth radiograph series on a new patient and to apply fluoride varnish to a child. A parent then asks the hygienist to prescribe a chlorhexidine rinse for the child's gingivitis because the dentist is unavailable. The hygienist writes the prescription on the dentist's pad, signs the dentist's name, and tells the assistant to 'go ahead-I'm supervising.' The office's policy manual says the dentist must be present for radiographs and prescriptions. The dentist returns and learns what happened but says, 'No harm done-just don't put it in the chart.'
1. Identify each action and whether it is within the hygienist's scope or delegation authority.
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The hygienist's own scope includes dental hygiene services under the required supervision, but it does not include prescribing. Writing a prescription and signing the dentist's name is not a delegation issue; it is forgery and unprofessional conduct, and it exposes the patient to medication risk without a dentist's evaluation. The radiographs are a delegated function that the Board's rules assign to a dentist's authority; an uncertified assistant may not take them merely because the hygienist says 'I'm supervising.' The hygienist is not the dentist and cannot provide the direct supervision the rule requires. Fluoride varnish may be delegable to an assistant in some circumstances, but only if the dentist has authorized it and the supervision level is met; a 45-minute absence does not satisfy direct supervision. The office policy manual itself states the dentist must be present, which reinforces the violation.
2. What should the hygienist have done instead?
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She should have declined to write the prescription and told the parent the dentist would call or return. For the radiographs, she should have explained to the assistant and the patient that the dentist must be present or that the appointment must be rescheduled. For the fluoride, she could have waited for the dentist's return or, if the dentist had authorized it and the assistant was trained, proceeded only within the permitted supervision level. She should not use the title 'supervising' to fill a gap left by the dentist. If the dentist's absence is routine, she should raise it as a systems problem: schedule radiographs when the dentist is on-site, maintain a written delegation list, and keep prescription pads secured. She should document the incident and her refusal because a patient or parent may later complain.
3. What are the risks to the hygienist and the dentist?
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The hygienist risks discipline for aiding unlicensed or unauthorized practice, forgery, and failure to follow supervision rules; the dentist risks discipline for absence during delegated procedures, permitting an uncertified person to perform radiographs, and inadequate supervision. The practice also faces malpractice exposure if the radiographs are nondiagnostic or the prescription causes an adverse reaction. The child's parent relied on the office's representation that the care was authorized. If the Board investigates, the hygienist's 'I was supervising' statement will not help; it shows she knew the dentist was absent. The safest course is to correct the practice immediately, notify the dentist, and cooperate with any complaint. A single forged prescription can be more serious than a scheduling inconvenience.