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Explainers for the bits that catch people out

The topics that come up again and again in the Knowledge Test, written out properly — with the reasoning, not just the answer.

Illustration for BPE codes explained: what 0 to 4 actually mean
Assessment and Diagnosis

BPE codes explained: what 0 to 4 actually mean

The Basic Periodontal Examination scale, sextant by sextant — what each code records, where the 3.5 mm and 5.5 mm thresholds sit, and what the asterisk means.

Illustration for How to revise for the NEBDN Knowledge Test
Exam technique

How to revise for the NEBDN Knowledge Test

What the Knowledge Test asks, why re-reading your notes does not work, and a revision approach built around retrieval practice rather than recognition.

Revise anywhere, with the whole question bank

This site publishes the app's free sample. Dental Nurse Exam Revision carries the full bank offline, so you can revise on the bus, between patients, or the night before.

All 602 questions
Every question across all 10 units, including the five this site cannot unlock.
65-question mock test
Timed at 90 minutes, mirroring the shape of the real Knowledge Test.
An explanation every time
Every answer explains itself and cites where it comes from, right or wrong.
Progress you can see
History and per-unit results show which units still need the work.

For iPhone, iPad and Android.