Phone Instruction, an EFDA, and Local Anesthesia Without the Dentist
Dr. Patel owns a solo practice in Columbia, Missouri. On a Tuesday morning he is called away for a family emergency. Before leaving, he tells his staff he will be reachable by phone. At 11:00 a.m., a patient arrives with a fractured cusp on tooth #19 and pain on chewing. The office's expanded function dental assistant (EFDA), who has current certification, has been trained by Dr. Patel to place composite restorations. The hygienist, who holds a local anesthesia permit, offers to anesthetize the tooth. The office manager calls Dr. Patel, who says, "Go ahead-have the EFDA prep and restore it, and the hygienist can numb it. I'll check it tomorrow morning." No other dentist is on the premises. The patient is not in acute distress and has no swelling or fever.
1. Can the EFDA legally prep and restore tooth #19 on Dr. Patel's phone instruction? Identify the supervision issue.
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No, not on those facts. The central issue is the level of supervision required for the delegated function. Restorative procedures delegated to an EFDA are not functions that can be performed on a telephone instruction while the dentist is off the premises. The dentist must have examined the patient, authorized the specific procedure, and be available on the premises to provide direct supervision and to check the result before the patient leaves. A phone call does not satisfy direct supervision. The EFDA's certification and training are necessary but not sufficient; certification defines what may be delegated, not when the dentist may be absent. If the Board treats the procedure as one requiring direct supervision, proceeding would place the assistant outside her authorized scope and expose Dr. Patel to discipline for aiding unlicensed or unauthorized practice. The office manager should not treat the dentist's phone statement as a lawful order to proceed.
2. Can the hygienist administer local anesthesia in this situation? What facts matter?
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Likely not. A local anesthesia permit expands what the hygienist may do, but it does not eliminate the supervision requirement. The facts that matter are whether the hygienist holds a current permit, whether the dentist has examined the patient and authorized the specific injection, and whether the dentist is physically present as required for that delegated function. Here the dentist is off-site and has not examined the patient that day. A phone authorization from a dentist who is not on the premises is generally not enough for local anesthesia administration. The hygienist should not proceed merely because she is permitted and the patient is willing. If the patient were in acute distress, the staff should arrange emergency coverage or referral rather than stretch the supervision rules. The permit is a ceiling, not a license to practice independently.
3. What should the staff do instead, and what should Dr. Patel do when he returns?
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The staff should explain to the patient that the dentist is unavailable and that the procedure cannot be done safely and lawfully without him. They should offer a timely reappointment, arrange coverage by another dentist if the patient is in pain, and document the conversation. They should not prep the tooth, administer local anesthesia, or let the EFDA place a restoration. A temporary sedative filling or other palliative measure should be done only if it is within the lawful scope of the person performing it and authorized under the applicable supervision rule; if not, referral is the safer course. When Dr. Patel returns, he should examine the patient, complete or authorize the treatment, review what was told to the patient, and make sure no chart entry suggests a procedure was performed when it was not. He should also arrange a covering dentist for future absences so phone instructions are not used as a substitute for required supervision.