# California RDH and RDA exams Answers Primary-source answers about the DHBC RDH Laws and Ethics Written Examination and the DBC RDA Combined Written and Law and Ethics Examination — format, scoring, pathways, fees, and free practice paths. Canonical URL: https://dentovio.com/answers/topic/california-auxiliary-exams Markdown mirror: https://dentovio.com/answers/topic/california-auxiliary-exams/index.html.md Answer hub: [Dentovio Public Answers](https://dentovio.com/answers) Answer bank JSON: https://dentovio.com/answer-bank.json AI search manifest: https://dentovio.com/ai-search.json Answer count: 4 Last verified: 2026-07-13 ## Direct answer This topic groups 4 public Dentovio answer intents for california rdh and rda exams. Each answer includes a focused answer URL, the canonical source page, query patterns, and source-citation metadata where available. ## Answers in this topic ### California RDH law and ethics exam Answer: The DHBC Registered Dental Hygienist (RDH) Laws and Ethics Written Examination has 60 multiple-choice items (50 scored plus 10 unscored pretest) in 90 minutes at PSI test centers, with a 75% minimum passing score under 16 CCR §1121(c). Every RDH licensure pathway — including out-of-state licensure by credential — requires it, and exam eligibility expires one year after approval. Answer page: [/answers/california-rdh-law-ethics-exam-facts](https://dentovio.com/answers/california-rdh-law-ethics-exam-facts) Answer markdown: [/answers/california-rdh-law-ethics-exam-facts/index.html.md](https://dentovio.com/answers/california-rdh-law-ethics-exam-facts/index.html.md) Source page: [/rdh](https://dentovio.com/rdh) Source markdown: [/rdh/index.html.md](https://dentovio.com/rdh/index.html.md) Answer intent ID: `california-rdh-law-ethics-exam-facts` Last verified: 2026-07-24 Reviewer: see source page Query patterns: - California RDH law and ethics exam - how many questions are on the California RDH law and ethics exam - DHBC law and ethics exam passing score Source citations: - `DHBC-RDH-CIB` DHBC/PSI RDH Laws and Ethics Written Examination Candidate Information Bulletin (January 2026). Primary. Verified 2026-07-24. - `CCR-16-1121` 16 CCR §1121 — DHBC supplemental written examination in California law and ethics. Primary. Verified 2026-07-24. ### California RDH law and ethics practice test Answer: Dentovio's free California RDH Laws and Ethics practice test uses original, statute-cited questions spread across the official 2025 outline areas — consent and privacy (35%), professional practice standards (35%), and patient/professional obligations (30%). It contains no recalled or reconstructed exam items. Answer page: [/answers/california-rdh-free-practice-test](https://dentovio.com/answers/california-rdh-free-practice-test) Answer markdown: [/answers/california-rdh-free-practice-test/index.html.md](https://dentovio.com/answers/california-rdh-free-practice-test/index.html.md) Source page: [/rdh/free-practice-test](https://dentovio.com/rdh/free-practice-test) Source markdown: [/rdh/free-practice-test/index.html.md](https://dentovio.com/rdh/free-practice-test/index.html.md) Answer intent ID: `california-rdh-free-practice-test` Last verified: 2026-07-24 Reviewer: see source page Query patterns: - California RDH law and ethics practice test - free RDH law and ethics practice questions - DHBC law and ethics exam practice Source citations: - `DHBC-RDH-CIB` DHBC/PSI RDH Laws and Ethics Written Examination Candidate Information Bulletin (January 2026). Primary. Verified 2026-07-24. ### California RDA written exam how many questions Answer: The Registered Dental Assistant Combined Written and Law and Ethics Examination is a single 125-item, 3-hour computer-based test at PSI centers (100 scored items plus 25 unscored pretest), scored pass/fail on a criterion-referenced standard — not a fixed 75%. In June 2026 the Dental Board reported a 72% overall pass rate, with the work-experience pathway at 62% and repeat testers at 38%. Answer page: [/answers/california-rda-combined-exam-facts](https://dentovio.com/answers/california-rda-combined-exam-facts) Answer markdown: [/answers/california-rda-combined-exam-facts/index.html.md](https://dentovio.com/answers/california-rda-combined-exam-facts/index.html.md) Source page: [/rda](https://dentovio.com/rda) Source markdown: [/rda/index.html.md](https://dentovio.com/rda/index.html.md) Answer intent ID: `california-rda-combined-exam-facts` Last verified: 2026-07-24 Reviewer: see source page Query patterns: - California RDA written exam how many questions - RDA combined written and law and ethics examination - California RDA exam pass rate Source citations: - `DBC-RDA-OUTLINE` Dental Board of California RDA Combined Written and Law and Ethics Examination Outline. Primary. Verified 2026-07-24. - `DBC-RDA-STATS` Dental Board of California RDA Combined Written and Law and Ethics Examination Statistics (June 2026). Primary. Verified 2026-07-24. ### California RDA practice test free Answer: Dentovio's free California RDA practice test uses original questions across all four official content areas — assessment and diagnostic records (15%), dental procedures (50%), infection control and safety (25%), and laws and regulations (10%) — keyed to the Dental Board's published outline, with no recalled exam items. Answer page: [/answers/california-rda-free-practice-test](https://dentovio.com/answers/california-rda-free-practice-test) Answer markdown: [/answers/california-rda-free-practice-test/index.html.md](https://dentovio.com/answers/california-rda-free-practice-test/index.html.md) Source page: [/rda/free-practice-test](https://dentovio.com/rda/free-practice-test) Source markdown: [/rda/free-practice-test/index.html.md](https://dentovio.com/rda/free-practice-test/index.html.md) Answer intent ID: `california-rda-free-practice-test` Last verified: 2026-07-24 Reviewer: see source page Query patterns: - California RDA practice test free - RDA written exam practice questions - RDA law and ethics practice test California Source citations: - `DBC-RDA-OUTLINE` Dental Board of California RDA Combined Written and Law and Ethics Examination Outline. Primary. Verified 2026-07-24. ## Topic source citations - `DHBC-RDH-CIB` DHBC/PSI RDH Laws and Ethics Written Examination Candidate Information Bulletin (January 2026). Primary. Verified 2026-07-24. - `CCR-16-1121` 16 CCR §1121 — DHBC supplemental written examination in California law and ethics. Primary. Verified 2026-07-24. - `DBC-RDA-OUTLINE` Dental Board of California RDA Combined Written and Law and Ethics Examination Outline. Primary. Verified 2026-07-24. - `DBC-RDA-STATS` Dental Board of California RDA Combined Written and Law and Ethics Examination Statistics (June 2026). Primary. Verified 2026-07-24. ## Publication boundary This answer bank covers public Dentovio surfaces only. It excludes paid lessons, question banks, scenario drills, timed exams, and user-account content. It is not legal, clinical, financial, coding, coverage, board, or testing-vendor advice. Each answer points to a canonical destination page. 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