Dental Board of California investigations: what dentists need to know

Who investigates

Investigations are handled by the Board’s Enforcement Program. Straightforward matters are reviewed informally by non-sworn Board staff; more serious matters go to a formal investigation by sworn investigators — California peace officers — of the DCA’s Division of Investigation. Dental consultants (expert dentists) advise on standard-of-care questions. The Board may also inspect your premises (BPC §1670); refusing an inspection can itself lead to suspension or revocation.

The notice letter — and your written response

You will usually receive a formal letter asking for a written response, commonly around 30 days from the mailing date. This is the most consequential window in the whole process: the content of your response, together with a mitigation bundle, shapes every later stage. Take advice before you send it. You may be asked to provide records voluntarily; investigators can also compel them.

How long does it take?

Investigations commonly take 6 to 18 months. Cases that go to a contested hearing can run well beyond 36 months to a Final Decision. While the case is open it stays confidential, and most dentists continue to practise unless an Interim Suspension Order is issued.

The standard of proof

To discipline you, the Board must prove a violation by clear and convincing evidence to a reasonable certainty — higher than the civil “more likely than not” test, though lower than the criminal standard. In quality-of-care cases, the dental consultant’s or expert’s opinion is usually decisive.

The statute of limitations

Here dentistry differs from nursing and pharmacy, which have none. Under BPC §1670.2, an Accusation for a practice violation must generally be filed within three years after the Board discovers the act, or within seven years after it occurred, whichever comes first. But the exceptions are wide: no limit for fraud or willful misrepresentation, or for incompetence or negligence that was intentionally concealed; a longer window (up to ten years) for certain sexual-misconduct allegations; and tolling — for example while you are out of state or participating in the diversion program. Don’t assume an old matter is time-barred.

Can I keep working during the investigation?

Usually yes. In serious cases the Board can seek an Interim Suspension Order, and a criminal court can restrict practice under Penal Code §23 while a related prosecution is pending — but most dentists keep working while an investigation runs.

Where an investigation leads

An investigation ends by being closed (no violation — nothing published), resolved with a Letter of Education or an administrative citation and fine (BPC §125.9 — used where there is no physical harm but the care was substandard, and which may include an order to correct), or referred to the Attorney General for a formal Accusation. Our guide to disciplinary actions and penalties explains what happens then; if you are earlier in the process, start with what happens after you are reported.

Using the time well

The months of an investigation are also an opportunity to build the mitigation record that shapes any later outcome — documented reflection, remedial education and CE, and evidence that any deficiency has been corrected.

This article is general information for education purposes and is not legal advice. If you have received a complaint, a records request, a citation or an Accusation, seek advice from a California attorney experienced in dental licence defence and notify your professional liability insurer. Healthcare Ethics Courses is an independent education provider and is not affiliated with, endorsed by, or acting on behalf of the Dental Board of California, the Department of Consumer Affairs, or any state agency; names are used for reference only.