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The exams, exactly — and the three stale claims to purge before you study
Florida requires a written examination on its dental laws and rules on every pathway to licensure. Dentist candidates sit the Florida Dental Laws and Rules Exam (FDLR) under rule 64B5-2.013, F.A.C.; dental hygiene candidates sit the Florida Dental Hygiene Laws and Rules Exam (FHLR) under rule 64B5-2.0135, F.A.C. They are two separate examinations — different rule, different item count, different fee — administered by ADEX/CDCA under contract to the Florida Board of Dentistry and delivered at Prometric test centers.
| FDLR — dentist | FHLR — hygienist | |
|---|---|---|
| Items | Up to 67 multiple-choice, incl. up to 5 unscored field-test items | Up to 64 multiple-choice, incl. up to 5 unscored field-test items |
| Time | 90 minutes | 90 minutes |
| Pass mark | 75% or higher | 75% or higher |
| Fee | $135 — initial and retake alike | $105 — initial and retake alike |
| Delivery | Computer-based at Prometric, closed book | Same |
| Results | Pass/fail only, in 2-3 business days | Same |
| Governing rule | 64B5-2.013, current version effective June 1, 2026 | 64B5-2.0135, current version effective June 1, 2026 |
All of the above comes from the ADEX/CDCA vendor page, the 2026 ADEX Candidate Guide, and the current rule texts — the three documents that control these exams.
Three stale claims circulate widely, and each one is wrong by name:
- "The exam has 64 questions" (for the dentist exam). That figure comes from the retired 2019 candidate booklet. The live vendor page says up to 67 items for the FDLR and up to 64 for the FHLR, each including up to 5 unscored field-test items. Details in our dated note on the current scope and item counts.
- "Chapter 64B27 (dental laboratories) is tested." It appeared only in that same legacy 2019 booklet. The current scope is exactly three sources: Chapter 456, F.S., Chapter 466, F.S., and Division 64B5, F.A.C. Time spent memorizing laboratory registration rules from 64B27 is time taken from delegation, records, and discipline — the material the exams actually draw on.
- "The Laws and Rules exam must fit inside the ADEX 18-month window." The 18-month completion window in the rules attaches to the ADEX clinical examination parts; the 2026 ADEX Candidate Guide lists the Laws and Rules exams as standalone computer-based exams. The only clock on the L&R exams is that registration credits expire 2 years from payment. Our note on the 18-month window walks through the rule text.
One more freshness fact worth carrying: both exam rules were amended with current versions effective June 1, 2026, at the end of their five-year review. The written exam requirement and the 75% mark were unchanged by that amendment — but prep citing pre-amendment rule text is one revision behind, and some of the amendment's stricken cross-references (like rule 64B5-2.0152) still appear in older materials. See what changed in the June 2026 rulemaking.
Finally, the number everyone asks for and nobody can honestly give: Florida publishes no pass rate for these exams. Results are pass/fail only, and neither the Board, the department, nor the vendor publishes aggregate outcomes. Any specific percentage you see elsewhere is unsourced. What is knowable is the structure — closed book, a 75% mark, 90 minutes, and delegation rules dense enough to punish guessing — and that structure is what the rest of this guide is built around.