A felony does not automatically bar a California registered dental hygienist (RDH) license. The Dental Hygiene Board of California (DHBC) evaluates an initial applicant’s conviction under Business and Professions Code §480 and its hygiene-specific relationship and rehabilitation rules. The exact offense, its connection to hygienist duties, conviction and incarceration dates, and any record relief matter. California requires an RDH license before practicing dental hygiene, subject to the federal servicemember exception noted by the DHBC applicant page. An unlicensed dental-assistant job is a different role, not a way to practice hygiene without an RDH license.
What changes the answer for an RDH applicant
| Case stage | What to examine |
|---|---|
| Charge pending; no plea or conviction | The charge is not yet a licensing conviction. Review the proposed plea and any DHBC request before responding; the pending label alone does not predict the eventual application outcome. |
| Guilty or no-contest plea, verdict or judgment | Determine when it qualifies as a conviction, whether it is substantially related to RDH duties, and the dates that control section 480’s limits. |
| Prior conviction with later relief | Identify the exact dismissal, certificate, pardon or rehabilitation evidence; a description such as “expunged” is not enough to apply the statute. |
The Board will not issue a license until it receives and reviews both California Department of Justice and FBI criminal-background information. DHBC warns that review can take longer when there is criminal history. Its applicant instructions set out RDH education or clinical-examination routes and a separate licensure-by-credential route; satisfying a route does not bypass the background review.
The conviction rule is specific, not an automatic felony ban
For an initial license, section 480(a)(1) permits conviction-based denial only when the offense is substantially related to the profession and ordinarily was within seven years before application, or the applicant is currently incarcerated for it or was released from incarceration within seven years before application. The time limit does not apply to a serious felony defined in Penal Code §1192.7 or a crime requiring registration under the specified parts of Penal Code §290(d)(2) or (3). Those exceptions remove the seven-year limit, not the need to assess substantial relationship. Section 480 also identifies a financial-crime exception for specified fiduciary license categories; dental hygiene is not among them.
Under 16 California Code of Regulations §1135, DHBC considers the offense’s nature and gravity, elapsed time and actual duties of a hygienist. The regulation identifies categories that can be substantially related, including fiscal dishonesty, child abuse, sexual misconduct, dangerous-drug conduct and DUI. A listed category does not itself require denial; section 480’s timing and rehabilitation protections still apply. The Board’s current regulations page lists §§1135–1137 as approved and effective.
A charge alone is not a conviction. Section 7.5 defines when a guilty or no-contest plea, verdict or finding can support licensing action, including after the appeal period or when probation is granted with imposition of sentence suspended. A plea can therefore change the RDH analysis even if the sentence does not include jail. Do not infer from a pending case that the Board must approve a later application or that it cannot inquire about other relevant conduct. (Sections 7.5, 480)
Rehabilitation, disclosure and the existing-license distinction
Section 480(b)–(d) protects applicants in specified circumstances, including a certificate of rehabilitation, pardon or clemency, a showing of rehabilitation under the statute, or a qualifying dismissal of the conviction; it also bars denial based on an arrest disposed of without conviction. 16 CCR §1136 describes DHBC’s rehabilitation review. Its criteria depend in part on whether the applicant completed the sentence without a parole or probation violation. A relief order does not establish that every separate licensing requirement is met.
For an initial RDH application, section 480(f) generally prevents DHBC from requiring the applicant to disclose criminal-history information or documents. DHBC can ask for mitigating information if it makes clear that disclosure is voluntary and declining will not count against the applicant. That does not cancel the fingerprint/background review or excuse an inaccurate answer to a lawful application question.
If you already hold an RDH license, this initial-applicant rule does not answer your renewal or discipline question. The Board’s renewal page and its 16 CCR §1132(b) require disclosure of convictions during the prior renewal cycle, subject to the regulation’s narrow traffic-infraction exclusion. Read the actual renewal form and any Board notice; the verified materials do not establish a general deadline to report every pending charge.
Before a plea or Board response, gather the charging document, proposed plea, exact disposition, conviction and custody dates, relief orders, your RDH application or license status, and every DHBC notice. The Law Offices of David S. Chesley can review the California criminal charge and proposed resolution with this licensing consequence in view. For a contested DHBC matter, consider separate dental-hygiene licensing counsel. Call (800) 755-5174.