The RCPSG Official Modules are the exam body's own MFDS Part 1 preparation material, which makes them the calibration gold-standard for early-career dentists sitting the written paper. Their value is not volume — a finite set of modules and around a hundred sample questions cannot carry a full revision — but signal: they show you the authentic question style, cognitive level and domain emphasis to calibrate against, before you build unseen volume elsewhere.
What the RCPSG Official Modules offer for MFDS Part 1 right now
These are official Royal College of Physicians and Surgeons of Glasgow (RCPSG) materials, not third-party revision. The figures below are vendor-reported and should be confirmed on rcpsg.ac.uk.
| Item | What the vendor states (20 July 2026) |
|---|---|
| Revision Modules | Video-based, on-demand modules across nine clinical domains: restoration, dento-alveolar trauma, caries, orthodontics, drugs, periodontal disease, endodontics, oral surgery, oral mucosal diseases |
| Preparatory Question Bank | "Over 100 sample questions" (sold separately) |
| Official status | Yes — developed by the College "to give candidates the necessary knowledge about key areas of the exam" |
| Adaptive/AI features | None — these are teaching modules and a fixed sample set, not an adaptive engine |
| Price | Revision Modules £80; Preparatory Question Bank £85 (RCPSG-registered) or £100 (external); combined savings package £85 for RCPSG-registered candidates |
| Access period | Not clearly specified — verify |
The point to hold: this is calibration material, not a primary bank. Its job is to tell you what an authentic MFDS Part 1 item looks like and how the College pitches difficulty, so you can judge whether your main commercial bank is faithful to that standard.
The MFDS Part 1 exam: what you are actually being tested on
MFDS Part 1 (Membership of the Faculty of Dental Surgery) is a computer-based, single-best-answer written exam testing the applied clinical knowledge required for safe, effective dental practice at the level of a graduate entering core training or early general practice. On the date checked, the RCSEd exam-details page stated 180 single-best-answer questions over three hours; the RCPSG page framed it as an online written applied-knowledge exam and directed candidates to the current regulations without republishing the count, so verify the exact number and duration for your delivering college on rcpsg.ac.uk / rcsed.ac.uk before you plan. The syllabus is defined in the Dental Foundation Training Curriculum and the MFDS Regulations and Syllabus.
One editorial point specific to dental exams: the UK medicines reference for the "drugs" domain is the Summary of Product Characteristics on the electronic medicines compendium (SmPC/eMC) together with NICE and SDCEP guidance — not any pocket formulary shorthand. Calibrate your drug knowledge to primary sources.
What is genuinely official — and what is not
Separate the College's own material from endorsed commercial products. Genuinely official here are: the RCPSG Revision Modules, the Preparatory Question Bank of sample questions, the MFDS Regulations and Syllabus, and any examiner or candidate guidance the College publishes. These carry the authority of the awarding body and define the standard. Everything else — third-party banks, courses and books, however good — is commercial preparation that approximates the standard rather than setting it. Treat the official sample questions as the reference specimen and the commercial banks as candidates to be measured against it, not the other way round.
Extract the signals from the official material
Work the official modules and sample questions once, carefully, and record the signals that define authentic MFDS Part 1 style:
- Stem length and structure: are stems concise single-best-answer clinical vignettes, or longer data-rich scenarios?
- Option construction: five options with all distractors clinically plausible, or an obvious throwaway?
- Cognitive level: pure recall, or application and clinical judgement — "what is the most appropriate management" rather than "what is true"?
- Image use: do items include radiographs, clinical photographs or charts, and at what frequency?
- Timing: what per-question pace does the official material imply against the three-hour paper?
- Negative marking: confirm from the regulations whether marking is positive only.
- Domain emphasis: which of the nine module domains carry the most weight and depth?
These signals are the calibration output. Write them down; they become the yardstick for auditing any commercial bank.
Side-by-side matrix: official sample versus your main bank
Without copying any item text, build a comparison grid. Down the side, list the signals above. Across the top, put two columns: "RCPSG official material" and "my main MFDS bank". Fill each cell with your judgement — for example, official stems "medium-length, application-level, occasional radiograph"; commercial bank "shorter, more factual, few images". The grid makes the discrepancies explicit and turns a vague sense that a bank "feels easier" into a specific, actionable finding.
| Signal | RCPSG official material | Your main commercial bank |
|---|---|---|
| Stem length / structure | (record) | (record) |
| Option plausibility | (record) | (record) |
| Cognitive level | (record) | (record) |
| Image use | (record) | (record) |
| Implied pace | (record) | (record) |
| Domain emphasis | (record) | (record) |
Use the discrepancies diagnostically
The gaps between the two columns tell you how to adjust. If your commercial bank is easier or more factual than the official material, you are under-training judgement — add application-level practice and slow down to reason, not recall. If it is harder or more obscure, you may be over-training on edge cases the College does not emphasise — rebalance toward core competence. If it is narrower, it is missing domains the modules cover — force those domains manually. If it is differently worded, practise translating the official phrasing so exam-day language does not surprise you. The official material is the fixed reference point; the commercial bank is the variable you tune.
Preserve the calibration value: unseen, timed, once
The official sample questions are a scarce, high-value resource, and their value collapses if you rehearse them into memory. Sit them unseen, timed at exam pace, and ideally once — as a calibration event, not a drill. If you grind the hundred sample items repeatedly, you convert reasoning into recognition and lose the one clean read you had on authentic difficulty. The modules can be revisited for teaching, but the sample questions should be spent deliberately, late enough to be meaningful and only when you can treat them as a mock.
Translate the findings into quotas and conditions
Turn the calibration into a plan. If the modules revealed that oral surgery and oral mucosal diseases are heavily emphasised and your bank is thin there, set explicit weekly quotas for those domains. If the official items sat at application level and your bank skews factual, schedule application-heavy, timed blocks and mixed mocks for the final weeks. If images appeared more often than your bank provides, add a deliberate radiograph-and-photograph practice stream. And fix the conditions: unseen, timed, mixed, no assistance — the same conditions that make any readiness signal credible.
A seven-day worked example
For an early-career dentist, give the RCPSG material one job — calibration — and iatroX a separate job — unseen transfer volume — with no claim about how either selects items.
- Monday–Wednesday (evenings): work two RCPSG modules a night for teaching, noting the domain emphasis and cognitive level; do not touch the sample questions yet.
- Thursday: iatroX, timed mixed blocks weighted toward the domains the modules emphasised, unseen, at exam pace.
- Friday: sit a portion of the RCPSG Preparatory Question Bank unseen and timed as a calibration check; compare its style and your accuracy against your iatroX blocks.
- Saturday: reconcile discrepancies — relearn any domain where you were strong on your commercial bank but weak on the official items; verify drug answers against the SmPC/eMC.
- Sunday: plan next week's quotas from the calibration, and reserve the remaining official questions for a late, once-only mock.
The division is deliberate: the official material sets the standard and gives a clean read; iatroX supplies the unseen volume the finite official set cannot.
Decision checklist: continue, supplement, switch or stop
- Continue using the official modules for teaching and domain-emphasis calibration throughout your preparation — they are the standard-setting reference.
- Supplement with a high-volume unseen bank (including iatroX) for the practice volume the finite official set cannot provide, following the two-Q-bank rule to avoid duplication.
- Switch your commercial bank's weighting — or the bank itself — if the side-by-side matrix shows it is materially easier, narrower or differently pitched than the official material.
- Stop re-sitting the official sample questions once you have used them as a calibration mock; preserve their signal rather than drilling them into recognition.
The bottom line
The RCPSG Official Modules and sample questions are the authoritative calibration material for MFDS Part 1: they reveal the genuine question style, cognitive level and domain emphasis better than any third-party source, and they carry the awarding body's authority. What they are not is a complete revision — the module set and roughly a hundred sample questions are finite. Use them to calibrate and to audit your commercial bank against the real standard, sit the samples unseen and once, and build unseen volume elsewhere for the practice they cannot supply.
Frequently asked questions
Is RCPSG Official Modules enough for MFDS Part 1 on its own? No, and it is not designed to be. The modules and the roughly one hundred sample questions (vendor-reported, 20 July 2026) are calibration and teaching material rather than a high-volume bank, so on their own they cannot supply the breadth of unseen practice a written applied-knowledge exam demands. Their strength is that they set the authentic standard; pair them with a larger unseen bank for volume.
Which MFDS Part 1 component does RCPSG Official Modules not reproduce well? MFDS Part 1 is a single written single-best-answer paper, so there is no separate clinical component for the material to miss. The genuine limitation is volume and repeat-practice: a finite set of sample questions cannot provide the hundreds of unseen items needed to build and measure readiness, which is why it functions as a calibration reference rather than a primary practice bank.
How many RCPSG Official Modules questions should I complete per day for MFDS Part 1? Because the official questions are a scarce calibration resource, the right number per day is usually zero until you are ready to use them deliberately — you work the teaching modules across several sessions, then sit the sample questions unseen and timed as a one-off calibration mock rather than a daily drill. Your daily question volume should come from a larger unseen bank, with the official items reserved and spent late.
When should I stop using RCPSG Official Modules and move to mixed mocks? You do not so much stop as change mode: keep the teaching modules available throughout, but once you have extracted the style and domain-emphasis signals and sat the sample questions as a calibration mock, your remaining weeks belong to timed, mixed, unseen mocks that build and test readiness. Re-drilling the finite official questions past that point adds recognition, not readiness.
How should I combine RCPSG Official Modules with iatroX without duplicating practice? Assign non-overlapping jobs: use the RCPSG material to calibrate authentic question style, cognitive level and domain weighting, and use iatroX purely for the unseen, timed, mixed volume that the finite official set cannot provide. Never rehearse the official sample items inside another bank — their value is a single clean read of the real standard — which is precisely the separation the two-Q-bank rule protects.
Editorial notes and references
Written by Dr Kolawole Tytler, NHS GP and founder of iatroX. Last checked 20 July 2026. RCPSG figures are vendor-reported and were read from rcpsg.ac.uk on that date; module domains, the "over 100 sample questions" claim and the £80 / £85 / £100 prices were stated by the College, while the access period was not clearly specified — confirm on the product page. The MFDS Part 1 format cited (180 single-best-answer questions over three hours) was taken from the RCSEd exam-details page; the RCPSG page did not republish the count, so verify the exact number and duration for your delivering college. This is a UK dental exam: the medicines reference is the SmPC on the electronic medicines compendium with NICE/SDCEP guidance, not any formulary shorthand. Disclosure: iatroX operates a question bank that competes with commercial MFDS banks; this audit confines iatroX's role to the unseen-volume and measurement job the finite official material does not provide, and positions the RCPSG material as the calibration standard above any bank. Corrections are welcome via the feedback route on iatrox.com.
References: RCPSG — MFDS Part 1 Revision Modules and Preparatory Question Bank (rcpsg.ac.uk); RCSEd — MFDS Part 1 exam details (rcsed.ac.uk); RCSEng — MFDS Part 1 (rcseng.ac.uk); iatroX — Your Q-Bank Percentage Is Not Your Exam Score; iatroX — the two-Q-bank rule; iatroX MFDS Part 1 bank via quiz-landing and the comparison hub.