Hygienist Alone at the Rural Satellite
Dr. Alvarez owns a practice in Bozeman and a two-chair satellite office in a town 58 miles away. The satellite is staffed two days a week by Ms. Chen, a licensed dental hygienist with 12 years of experience and a Montana local anesthesia endorsement. Dr. Alvarez is in Bozeman on those days and communicates by phone. A 16-year-old new patient presents with mild gingival bleeding and two newly erupted first molars with deep pits. Ms. Chen wants to take four bitewings, perform a prophylaxis, apply fluoride varnish, place sealants on the molars, and administer local anesthesia for a deep scaling on one quadrant. The patient's mother signed a general registration form; no dentist has examined the patient. Dr. Alvarez asks whether the satellite can run this way and what must be in place before Ms. Chen proceeds.
1. Identify the supervision level that applies to Ms. Chen's proposed services and explain whether she may proceed with this new patient while Dr. Alvarez is off-site.
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Supervision level. The proposed hygiene services fall under general supervision only if Dr. Alvarez has authorized them and remains responsible for the patient; general supervision is not independent practice. Ms. Chen may not diagnose caries or periodontal disease, and she may not decide on her own that a new patient needs radiographs or sealants. Montana's rule requires the supervising dentist to establish the patient of record and authorize treatment; a registration form signed by the mother is not a dentist's examination or treatment plan.
Application. The prophylaxis, fluoride, and sealants can be delegated if the dentist has examined or authorized care and the Board's supervision rule is met. Bitewings require a dentist's order or a board-approved protocol. The local anesthesia endorsement permits a hygienist to administer local anesthesia only under the supervision level and conditions in the Board's rule; it does not convert the satellite into an independent practice. Because no dentist has examined this new patient, Ms. Chen should not proceed with the full plan. She may gather limited screening information, but the dentist must examine the patient, or authorize care under an approved arrangement, before diagnostic-dependent or irreversible services.
2. Ms. Chen notices a white patch on the buccal mucosa and wants to brush it and take a photo for the dentist. What are her obligations?
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A white patch is a clinical finding, not a diagnosis. Ms. Chen must document the location, size, texture, duration, and symptoms, avoid labeling it (for example, as leukoplakia), and arrange a dentist's examination. She should not brush it, biopsy it, or treat over it. If the dentist cannot see the patient promptly, she should refer the patient for evaluation. The dentist must document the finding, the differential, and the follow-up plan. This is outside the hygienist's scope and cannot be handled by sending a photo alone.
3. What must Dr. Alvarez document and arrange to make general supervision compliant?
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Dr. Alvarez needs a written supervision and authorization process covering: who is a patient of record; which services are pre-authorized; how the dentist is available for consultation; how radiographs are ordered; how hygienist findings are reviewed; emergency and referral protocols; chart review; and documentation of the dentist's own examination or authorization. He should verify Ms. Chen's license and local anesthesia endorsement, confirm the Board's supervision rule for each service, and ensure the satellite has a plan for a dentist examination when a new patient presents. Phone availability alone does not authorize the hygienist to diagnose or treatment-plan.