10.6 Professional Conduct, Permitted Duties, and Scope Boundaries

Scope of Practice Is the Legal Boundary

Scope of practice is the legal limit on what a credential may do. For the California RDA it is set by the Dental Practice Act — chiefly Business and Professions Code (BPC) section 1750.1 (dental-assistant duties), BPC 1752.4 (RDA additional duties), and the Board's regulations such as 16 CCR 1086 — not by national custom. Three variables decide whether an RDA may perform a task:

1. Is the duty on the permitted-duties list for an RDA?
2. What supervision level does it require — direct or general?
3. Does it require a Board-approved course or other prerequisite first?

Supervision levels are tested precisely:

Mixing these up is a classic trap — for example, assuming a duty may be done with the dentist out of the building when it actually requires direct supervision.

Allowable vs Prohibited Duties

The RDA performs many supportive and reversible duties but never the dentist's diagnostic, surgical, or irreversible work.

Notice the pattern: RDA duties are supportive and reversible. The forbidden list is diagnosis, treatment planning, cutting/surgery, extractions, and irreversible procedures. A few additional duties (for example, using an ultrasonic scaler to remove excess cement from supragingival surfaces during orthodontic treatment) require a specific Board-approved course — at least four hours — before the RDA may perform them. The RDAEF (Extended Functions) credential expands scope further, but those are not RDA duties unless the person also holds the RDAEF license.

Conduct, Renewal, and Saying No

Professional conduct for an RDA means honesty, respect for patients, strict infection-control compliance, privacy protection, accurate records, and — critically — refusing to perform a duty outside the legal scope, even when a dentist directs it. "The dentist told me to" is not a defense for performing an extraction or cutting tissue. The exam-correct response to a request to do something outside scope, or that is unclear, is to stop and clarify with the supervising dentist or check official Board guidance before acting, not to comply quietly and not to refuse without explanation.

License maintenance is also tested:

• RDA licenses renew every two years.
• 25 CE units are required each renewal cycle (continuing education is not required for the very first renewal); no more than half (12.5 units) may be home study/self-instruction.
• A current Basic Life Support (BLS/CPR) certificate must be maintained at all times.

Worked example: a busy dentist asks the RDA to "just remove that loose tooth" to save chair time. Extraction is surgical removal of a tooth — a prohibited RDA duty regardless of who orders it. The correct answer is to decline and explain that it is outside RDA scope, and to have the dentist perform it. Compare a request to place a matrix band and wedge before the dentist restores a tooth: that is an allowable RDA duty under the proper supervision, so the assistant performs it. Knowing which side of the line a task falls on — and that the line is California's, not a national course's — is the heart of this domain.

The Test for Any Requested Duty

When a scenario asks whether an RDA may do a task, run it through four gates in order. Failing any gate means the answer is no (or not yet):

1. Permitted? Is the duty on the RDA permitted-duties list, or is it reserved to the dentist, RDAEF, or hygienist? (Diagnosis, treatment planning, cutting tissue, extractions, and irreversible procedures fail here outright.)
2. Trained/authorized? Does it require a Board-approved course the RDA has completed (coronal polishing, pit-and-fissure sealants, ultrasonic scaler for orthodontic excess cement; radiography certification for x-rays)?
3. Right supervision present? Does it require direct supervision (dentist physically in the office) or only general, and is that condition met right now?
4. Dentist's order? Has the supervising dentist authorized this procedure for this patient?

A duty must clear all four to be performed. This four-gate test turns vague "can I do this?" items into a reliable yes/no. It also explains why two superficially similar requests get opposite answers — placing a matrix passes all gates; "removing" a tooth fails gate one no matter how the gates two through four look.

Unprofessional Conduct and Discipline

The Dental Practice Act defines unprofessional conduct, and several grounds tie directly to this chapter: performing duties outside the authorized scope, inadequate or falsified records, breach of patient confidentiality, substance abuse affecting practice, fraud (billing for work not done), patient abandonment, and failure to comply with infection-control or mandated-reporting law. The Board enforces these through citations and fines, probation, suspension, or revocation, and an RDA's individual conduct — not just the dentist's — is on the line.

Practical conduct expectations the exam tests include maintaining standard precautions and infection control, protecting privacy, charting honestly, and declining unauthorized tasks even under schedule pressure. ** Saying "I'm not certified for that yet" or "that's outside RDA scope — let me get the dentist" is not being unhelpful; it is exactly the judgment the credential is meant to certify.