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Dental Membership Exam · New tri-collegiate Part 1 from October 2026
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Sample question · MFDS Part 1
A 25-year-old patient develops unilateral numbness of the lower lip and chin, together with reduced sensation in the mandibular teeth, following a bilateral sagittal split osteotomy. Sensation and taste in the tongue are normal. Which nerve was most likely injured?
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Blueprint topics to explore
Try a question from the MFDS Part 1 bank and read the explanation.
Try the questionWork through a question you have attempted. Keep your answer alongside the conversation as you explore the key distinction.
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Practise at this paper’s question count and pace. Official delivery, topic weighting and marking may differ.
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Two discrete papers, each containing 90 single-best-answer questions and lasting two hours (180 questions and four hours of testing in total). Candidates attend an assessment centre in person; questions may include images or test results, and there is no negative marking.
Mapped to the published new MFDS syllabus and Dental Core Training outcomes at the end of DCT3, with greater emphasis on applied clinical reasoning than the legacy DFT-level route.
The separate RCS England and RCSEd/RCPSG examinations retain their own legacy formats for their final diets. The final legacy Part 1 sittings are in October 2026 and the final legacy Part 2 is in spring 2027.
A candidate entering the new route must pass the new Part 1 before the new Part 2 and meet the current new-format eligibility criteria. The legacy 12-month experience rule belongs to the legacy route; a legacy Part 1 pass gives no exemption from the new Part 1.
A primary dental qualification and the experience specified in the current Dental Examinations Executive eligibility criteria are required. Attempt limits and eligibility differ between the legacy and new routes, so use the regulations for the exact examination being booked.
New tri-collegiate Part 1: 28 October 2026. Legacy Part 1 routes end in October 2026 and legacy Part 2 ends in spring 2027. A legacy Part 1 pass cannot be carried into the new examination and provides no exemption from new Part 1. Confirm booking windows and future diets on the Dental Examinations Executive website.
Choose a topic for focused revision and check your plan against the official specification.
Drawn from the MFDS syllabus, GDC Standards, SDCEP guidance, BSP 2017 periodontal classification, and current UK dental clinical practice. The new tri-collegiate MFDS emphasises non-technical skills more heavily.
Observations from candidates for the MFDS Part 1 in transition. Verify against current College websites and the Dental Specialty Fellowship Examinations site.
Candidate-reported observations — not official guidance.
A pragmatic plan for the new tri-collegiate Part 1; candidates on a final legacy diet should use their own college regulations for mock length and timing.
Foundation pass across all 13 iatroX revision areas. 30 questions/day with the iatroX adaptive engine. Read SDCEP guidelines paired to weak topics (caries, periodontal, MRONJ, antibiotic prescribing). Daily GDC Standards principle scenario review.
Targeted weak-area drilling. Map BSP 2017 periodontal classification cover-to-cover. Rehearse medical-emergency algorithms, review the oral-cancer referral pathway, practise current dental prescribing scenarios, and apply non-technical-skills frameworks.
Two timed 90-SBA, two-hour papers per week under new-exam conditions. Review every incorrect answer against current primary dental guidance and the published MFDS syllabus.
Bookmark review only. Targeted reading on law, ethics, MCA in dental practice, safeguarding, candour scenarios. Confirm your booking, assessment-centre location and candidate instructions. Sleep, hydrate, do not learn new material.
Dedicated MFDS Part 1 question practice with answer explanations, guided Tutor review and study planning.
Choose the relevant bank and use the official exam guidance to plan your preparation.
Read with a purpose
choose your preparation resources
Confirm the MFDS pathway and sitting before choosing resources. The Dental Examinations Executive publishes the new examination specification, while College pages retain information for the earlier structure.
Scroll across the table to compare all columns →
| Resource | What it helps you do | Access |
|---|---|---|
| Dental Examinations Executive MFDS ↗Official guidance | Current MFDS syllabus, assessment strategy, eligibility, Part 1 specification and sample SBA questions. | Check the requirements for your intended pathway and sitting. |
| RCSEd MFDS Part 1 information ↗Official guidance | College examination information and links to candidate guidance for MFDS Part 1. | Confirm how the College’s earlier structure and transition arrangements apply to you. |
| iatroXQuestion bank and Socratic Tutor | Practise questions, review explanations and explore your reasoning with Tutor. One subscription includes every premium bank. | $29/month or $99/year (USD)Free sample questions; full bank and Socratic Tutor with a subscription. Up to 10 sample questions daily, shared across exams. |
No account needed for samples. The daily 10-question allowance is shared across exams.
Published by iatroX. We checked the linked exam-body and provider pages for their advertised purpose and access. The suggestions compare uses, not pass rates or results from hands-on testing. Check each provider for current prices and inclusions.
A few useful answers
The first new tri-collegiate Part 1 sits on 28 October 2026 and contains two separate two-hour papers of 90 SBAs. Legacy Part 1 routes finish in October 2026 and legacy Part 2 finishes in spring 2027. The routes are separate: a legacy Part 1 pass does not carry over or exempt a candidate from new Part 1.
Check which route you can realistically complete. A candidate relying on a final legacy Part 1 must also complete the remaining legacy pathway within its published timetable; that pass cannot transfer to the new route. New entrants should normally prepare against the new Dental Examinations Executive syllabus and regulations.
Two papers of 90 single-best-answer questions, with two hours for each paper (180 questions and four hours of testing in total), delivered in person at an assessment centre. There is no negative marking.
RCSEd/RCPSG: £587 standard fee (£693 for candidates based in India, reflecting local taxes). RCS England: similar range. From 1 July 2025, an additional 18% tax applies to exam fees for candidates sitting in India. Fees may be subject to change — confirm current fees on the College websites.
Attempt limits differ between the legacy and new examinations. Check the regulations for the route you are booking. Part-completion of a legacy MFDS does not provide an exemption from new Part 1.
The MFDS does not represent a formal criterion for entry to UK dental specialty training. However, possession of the MFDS demonstrates a candidate's suitability for specialist training and is a valuable portfolio asset. From 2026, MFDS becomes a requirement to sit the new DSFE (Dental Specialty Fellowship Examinations) — making it more central to the specialty training pathway.
Full MFDS Part 1 bank access is included in all-access. Up to 10 new sample questions per day are shared across exams, with no account required. A verified free account includes one guided Tutor session; continued Tutor use is included in all-access.
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