The Dentist Steps Out During a Prophylaxis
At a three-chair general practice in Hartford, a 42-year-old new patient arrives at 9:30 a.m. for a prophylaxis. The dentist examined the patient at 9:00, charted heavy supragingival calculus, 4-mm probing depths, no bleeding, and wrote “prophy, bitewings, fluoride” in the plan. At 9:20 the dentist left for a hospital consultation, telling the hygienist to call if anything changed; the office is 15 minutes away. At 9:35 the patient mentions she started warfarin two weeks ago and does not know her INR. The hygienist has not taken radiographs yet. The office manual says all hygiene services are provided under general supervision. The hygienist wants to proceed with scaling, bitewings, and fluoride, and to chart the warfarin disclosure after treatment so the schedule is not delayed. The patient has no swelling, no spontaneous bleeding, and no other new medical history.
1. May the hygienist proceed with scaling, radiographs, and fluoride under the office’s general-supervision policy? Analyze the supervision requirement and the effect of the warfarin disclosure.
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Rule and application. Connecticut’s Dental Practice Act permits a dental hygienist to perform prophylaxis, scaling, radiographs, and topical fluoride only as authorized by a supervising dentist and within the statutory scope of dental hygiene. General supervision does not mean independent practice; it means the dentist has examined the patient, prescribed the services, and remains available even if off-site. Here the dentist examined at 9:00 and wrote a plan that included prophy, bitewings, and fluoride, so the routine services are authorized in principle. The warfarin disclosure is a material change. Scaling can cause bleeding, and an unknown INR makes the bleeding-risk assessment the dentist’s responsibility, not the hygienist’s. The hygienist should not instrument until the dentist is contacted. Radiographs and fluoride do not create the same bleeding risk, but the better judgment is to pause the appointment and obtain direction because the plan may change. Conclusion: routine authorization exists, but the new medical fact suspends the scaling; proceeding would exceed the hygienist’s judgment authority.
2. What must the hygienist document and communicate, and what should she do if the dentist cannot be reached within 20 minutes?
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Documentation must be contemporaneous. The record should show the dentist’s 9:00 examination, the written treatment plan, the patient’s 9:35 disclosure of warfarin, the fact that the INR is unknown, the call to the dentist and its time, and the decision reached. The hygienist should not chart the warfarin disclosure after treatment as though it were discovered later; that would create a false record and could be treated as unprofessional conduct. If the dentist cannot be reached within a reasonable time, the hygienist should not scale. She should explain the bleeding concern to the patient, provide appropriate home-care instruction, and reschedule the instrumentation. Radiographs or fluoride may be completed only if the dentist’s standing order clearly covers them and the hygienist is satisfied that no new contraindication exists; otherwise, reschedule the entire appointment. The hygienist should also notify the front desk and the dentist’s answering service. Reasoning: general supervision supplies authority, not clinical clearance to override a new anticoagulant disclosure.
3. If the dentist had never examined the patient, would general supervision permit the hygienist to see the patient? Explain.
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No. General supervision presupposes a dentist’s examination, diagnosis, and authorization of the services. A new patient with no dentist examination lacks the required authorization for prophylaxis, scaling, radiographs, or fluoride in a private office. The hygienist could not create the plan herself simply because the office manual labels all hygiene as general supervision; a written office policy cannot expand the statutory scope of practice. The patient should be scheduled for a dentist examination first, or the dentist should examine the patient before hygiene services begin. Distinction: this is not a question of whether the hygienist is competent to detect calculus or probe depths; it is a question of who is legally responsible for the diagnosis and treatment plan. The answer would differ only in a setting where Connecticut law expressly permits a hygienist to practice under a different authorization standard, and a routine private practice is not that setting.