NDHCE · FDHRC (Canada)
Dental Hygiene
Certification.
Free 20-question NDHCE diagnostic, built from real exam-style items. See exactly where you stand across all 7 domains in about 30 minutes — no signup to start, instant topic-gap report.
20 questions · ~30 min · no signup to start · instant topic-gap report
Mock variants
4 ways to sit NDHCE.
Blueprint · topic weights
7 domains, honestly weighted.
Diagnostic and mock items are sampled in proportion to the published FDHRC (Canada) competency document — never random.
01ProfessionalismEthics, scope, accountability, regulatory standards (CDHA Code of Ethics, provincial Acts).8%
02Evidence-informed PracticeResearch literacy, evidence appraisal, applying EBP to clinical decisions.5%
03CommunicationTherapeutic communication, motivational interviewing, informed consent, cultural safety.5%
04CollaborationInterprofessional teamwork, referrals, shared care planning, advocacy.14%
05Practice ManagementRecords, scheduling, IPAC, safety, business of a hygiene practice, regulatory compliance.8%
06Prevention, Education, and Health PromotionCaries/perio risk reduction, fluoride/sealants, client education, community oral-health promotion.20%
07Clinical TherapyAssessment, dental hygiene diagnosis, planning, scaling/root planing, instrumentation, evaluation of outcomes.40%
FAQ
Everything candidates ask about NDHCE.
- Who writes the NDHCE?
- The National Dental Hygiene Certification Examination (NDHCE) is the Canadian licensure exam for dental hygienists, administered by the Federation of Dental Hygiene Regulators of Canada (FDHRC). The former National Dental Hygiene Certification Board (NDHCB) merged into the FDHRC in 2022, so the FDHRC is now both the regulator federation and the exam administrator. It is required for registration with provincial and territorial regulators across Canada.
- What is the NDHCE format?
- The NDHCE is a fully computer-based exam of 200 multiple-choice questions, of which 170 are scored and 30 are unscored experimental items, administered over 4 hours in two unique sections of 100 questions each (2 hours per section). The 2026 NDHCE Blueprint (approved by the FDHRC Board on February 24, 2025, effective May 2026 onwards) maps every item to one of seven EPCCoDH Domains of Expertise (A through G).
- What are the seven NDHCE Domains of Expertise?
- The 2026 NDHCE Blueprint (p.3) lists seven Domains of Expertise with their percentage ranges: A Professionalism (5–11%); B Evidence-informed Practice (2–8%); C Communication (2–8%); D Collaboration (11–17%); E Practice Management (5–11%); F Prevention, Education, and Health Promotion (17–23%); G Clinical Therapy (37–43%). Total = 100%.
- What item formats are on the NDHCE?
- Per the 2026 Blueprint, 70–80% of scored items are independent stand-alone questions and 20–30% are case-based items grouped into clinical scenarios (4–6 items per case scenario). Items reflect current dental hygiene practice and may include dental radiographs, intraoral photographs, and clients' dental charts.
- How is the NDHCE scored?
- NDHCE results are reported as Pass or Fail using criterion-referenced standard-setting. Items are also classified by cognitive level per the 2026 Blueprint: Knowledge/Comprehension (10–20%), Application (55–65%), and Critical Thinking (20–30%). First-time pass rates for graduates of CDAC-accredited Canadian dental hygiene programs are historically high.
- When is the NDHCE administered?
- The FDHRC offers three sittings per year. 2026 dates: January 21–22 (application deadline Nov 21, 2025); May 20–21 (deadline Mar 20, 2026); September 23–24 (deadline Jul 23, 2026). 2027 sittings: Jan 20–21, May 19–20, Sep 22–23. Check fdhrc.ca for the latest schedule and deadlines.
- How long should I study for the NDHCE?
- Most graduates of accredited Canadian dental hygiene programs find six to ten weeks of focused review sufficient. Foreign-trained candidates and re-writers typically need 12 to 16 weeks. Concentrate study time on Clinical Therapy (Domain G, 37–43%) and Prevention, Education, and Health Promotion (Domain F, 17–23%) — those are the largest scoring slices.
- What does Lumen's NDHCE module cover?
- Lumen's NDHCE module follows the 2026 FDHRC seven-domain blueprint with the published weight midpoints — every item is mapped to one of the EPCCoDH Domains of Expertise (A through G). Case-based clinical scenarios with 4–6 sub-items per case mirror the official 20–30% case-pack share, and the diagnostic surfaces the domains you're weakest on so your study time targets the highest-yield gaps.
- How do I sign up for Lumen?
- You can take the free diagnostic without an account. To save attempts, see rationales, and unlock full mocks, sign in with email — we send a magic link, no password to forget.
- Are rationales reviewed by clinicians?
- Yes. Every item ships with a clinician-written rationale that cites the published competency guideline it maps to. Items flagged by users get re-reviewed within a business day.
Why Lumen for NDHCE
Built by clinicians, priced for students.
01
Blueprint-aligned items.
Topic weights match the published competency document. No guessing what the test cares about.
02
Every rationale signed.
A licensed clinician wrote, reviewed, and cited every explanation. Flag one and we re-review within a day.
03
Diagnostic before you pay.
Free 20-item diagnostic with full topic gap analysis. No credit card. Decide if we’re right for you, then upgrade.
Independent study tool. Not endorsed by NDEB, ADA, or JCNDE. We do not promise passing scores. All items are exam-style and based on publicly available competency guidelines.