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100+ Free MJDF Part 1 Practice Questions

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Key Facts: MJDF Part 1 Exam

150 questions

MJDF Part 1 is a single paper of 150 multiple choice questions

The MJDF - examination regulations

3 hours

Part 1 is a single 3-hour written paper

The MJDF - examination regulations

Single best answer

Questions are mainly single best answer with some extended matching

The MJDF - examination regulations

No negative marking

Marks are not deducted for wrong answers, so every question should be attempted

The MJDF - information for candidates

No fixed pass mark

The pass standard is set per diet by criterion-referenced standard setting

The MJDF - examination regulations

About GBP 522

Approximate Part 1 fee, plus a local fee at overseas centres

The MJDF - examination dates and fees

Two faculties

Run jointly by the College of General Dentistry and the Faculty of Dental Surgery, RCS England

Royal College of Surgeons of England

100

Free original single-best-answer practice questions here

OpenExamPrep

MJDF Part 1 is the written paper of the Diploma of Membership of the Joint Dental Faculties, run jointly by the College of General Dentistry and the Faculty of Dental Surgery at the Royal College of Surgeons of England. It is a single 3-hour paper of 150 multiple choice questions, mainly single best answer with some extended matching, and has no negative marking. The pass mark is set for each diet by criterion-referenced standard setting rather than fixed in advance. The fee is around GBP 522 plus any local overseas administration fee. This 100-question bank gives original single-best-answer practice across clinical dentistry, medical emergencies, basic sciences and materials, radiology and law and ethics, with explanations for every option.

Sample MJDF Part 1 Practice Questions

Try these sample questions to test your MJDF Part 1 exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1A patient presents with a deep carious lesion. The pulp is exposed during caries removal in a vital, asymptomatic permanent tooth with a small pinpoint exposure in a young patient. Which is the most appropriate immediate management?
A.Direct pulp cap with a calcium-silicate or calcium hydroxide material
B.Extract the tooth
C.Leave the cavity open to drain
D.Place a permanent amalgam directly over the exposure
Explanation: A small mechanical or carious pulp exposure in a vital, asymptomatic tooth is best managed with a direct pulp cap using a biocompatible material such as a calcium-silicate cement (for example MTA or Biodentine) or calcium hydroxide, then a definitive restoration. This aims to preserve pulp vitality.
2Using FDI two-digit notation, which tooth is the permanent maxillary right first molar?
A.16
B.26
C.46
D.36
Explanation: In FDI notation the first digit is the quadrant (1 = upper right permanent) and the second is the tooth position from the midline (6 = first molar). The maxillary right first molar is therefore 16.
3During a Basic Periodontal Examination (BPE), a sextant is recorded as code 3. What does this indicate?
A.Probing depth of 3.5 to 5.5 mm (black band partly visible)
B.Healthy with no bleeding
C.Probing depth greater than 5.5 mm
D.Calculus or overhang with bleeding but pocket under 3.5 mm
Explanation: A BPE code 3 means the coloured band of the WHO probe is partially visible, indicating a probing depth of 3.5 to 5.5 mm. It signals the need for localised periodontal management and reassessment.
4A BPE code of 4 in any sextant indicates the need for which of the following?
A.A full probing depth chart of that sextant (six-point pocket chart)
B.Immediate extraction of all teeth in the sextant
C.No further action beyond oral hygiene advice
D.Routine recall in 2 years
Explanation: A code 4 (probing depth greater than 5.5 mm) requires more detailed assessment, including a full six-point periodontal pocket chart of the affected teeth, radiographs and a diagnosis, to plan periodontal treatment.
5A patient has a persistent, indurated ulcer with rolled margins on the lateral border of the tongue that has not healed after 3 weeks. What is the most appropriate next step?
A.Urgent referral under a 2-week-wait suspected cancer pathway
B.Prescribe a 1-week course of antibiotics and review
C.Reassure and review in 6 months
D.Apply topical corticosteroid and discharge
Explanation: An indurated, non-healing ulcer with rolled margins on the lateral tongue persisting beyond 3 weeks is suspicious for oral squamous cell carcinoma and warrants urgent referral on a suspected-cancer (2-week-wait) pathway for biopsy.
6Which of the following is the most common site for oral squamous cell carcinoma in the UK?
A.Lateral border and ventral surface of the tongue and floor of mouth
B.Hard palate
C.Dorsum of the tongue
D.Attached gingiva of the maxilla
Explanation: Oral squamous cell carcinoma most commonly affects the lateral and ventral tongue and the floor of mouth, areas of thin, non-keratinised mucosa where carcinogens pool.
7A patient reports a sharp pain on a lower molar that lasts only seconds when drinking cold water and stops immediately. There is no spontaneous pain and the tooth responds normally to vitality testing. What is the most likely diagnosis?
A.Reversible pulpitis
B.Irreversible pulpitis
C.Acute apical abscess
D.Cracked tooth with pulp necrosis
Explanation: Brief, sharp pain provoked by cold that resolves immediately on removal of the stimulus, with no spontaneous or lingering pain, is characteristic of reversible pulpitis. Removing the cause (for example caries) usually resolves it.
8Which irrigant is most commonly used during root canal treatment for its antibacterial action and ability to dissolve organic pulp tissue?
A.Sodium hypochlorite
B.Sterile saline only
C.Hydrogen peroxide 3%
D.Chlorhexidine without any tissue-dissolving agent
Explanation: Sodium hypochlorite is the gold-standard endodontic irrigant because it is antibacterial and dissolves organic and necrotic pulp tissue. It is often used with EDTA to remove the smear layer.
9An asymptomatic permanent incisor in an adult shows a periapical radiolucency, no response to electric pulp testing and no response to cold. What is the most likely diagnosis?
A.Pulp necrosis with asymptomatic apical periodontitis
B.Reversible pulpitis
C.Healthy pulp
D.Acute apical abscess
Explanation: A tooth that does not respond to vitality testing and has a periapical radiolucency but no symptoms is consistent with pulp necrosis and asymptomatic (chronic) apical periodontitis. Root canal treatment or extraction is indicated.
10A 7-year-old has a carious primary second molar with reversible pulpitis and a vital, bleeding coronal pulp that is controllable. Which technique is most appropriate?
A.Pulpotomy and preformed metal (stainless steel) crown
B.Full pulpectomy and gutta-percha obturation
C.Extraction and immediate implant
D.Direct composite restoration over the carious pulp
Explanation: For a primary molar with reversible pulpitis and controllable haemorrhage, a vital pulpotomy followed by a preformed metal crown is the recommended approach, preserving the tooth as a natural space maintainer.

About the MJDF Part 1 Exam

MJDF Part 1 is the written knowledge paper of the Diploma of Membership of the Joint Dental Faculties, developed jointly by the College of General Dentistry (formerly the Faculty of General Dental Practice UK) and the Faculty of Dental Surgery at the Royal College of Surgeons of England. It is a single three-hour paper of 150 multiple choice questions, mostly single best answer with some extended matching, taken by dentists who have typically completed or are completing UK Dental Foundation Training. The paper assesses the whole foundation training curriculum: clinical dentistry across all disciplines, relevant human disease and medical emergencies, basic sciences and dental materials, oral and dental radiology, and law, ethics and professionalism. It is open to all dentists, not only recent graduates, and Part 1 must be passed before attempting the Part 2 clinical examination.

Assessment

A single written paper of 150 machine-marked multiple choice questions, predominantly single best answer (SBA) with some extended matching questions (EMQ). Part 2 is a separate OSCE/clinical examination and is not covered here.

Time Limit

A single paper of 3 hours (180 minutes).

Passing Score

No fixed pass mark is published in advance. The pass standard is set for each diet using criterion-referenced standard setting, so it can vary between sittings. There is no negative marking.

Exam Fee

Approximately GBP 522, plus a local administration fee for candidates sitting at overseas British Council centres. Confirm the current fee on the official MJDF website. (College of General Dentistry (formerly Faculty of General Dental Practice UK) with the Faculty of Dental Surgery, Royal College of Surgeons of England)

MJDF Part 1 Exam Content Outline

60%

Clinical Dentistry

Operative and restorative dentistry, endodontics, periodontology and the BPE, prosthodontics, oral surgery and exodontia, oral medicine and oral pathology including oral cancer and potentially malignant disorders, paediatric dentistry and orthodontics. Practice covers diagnosis, treatment planning, local anaesthesia, and managing complications using FDI notation.

12%

Medical and Human Disease and Emergencies

Recognition and immediate management of medical emergencies in dental practice (anaphylaxis, asthma, hypoglycaemia, angina, cardiac arrest, seizures, syncope, choking), emergency drugs and doses, and the dental management of patients with relevant systemic disease and on common medications.

12%

Basic Sciences and Dental Materials

Oral and dental anatomy, physiology, pharmacology relevant to dentistry, microbiology and the properties, indications and handling of dental materials such as composite, glass ionomer, amalgam, impression materials and luting cements.

10%

Law, Ethics and Professionalism

GDC Standards for the Dental Team, valid consent, confidentiality and data protection, complaints handling, safeguarding, raising concerns, and evidence-based dentistry including levels of evidence and critical appraisal.

6%

Oral and Dental Radiology

Selection criteria, radiographic technique and interpretation, common radiographic appearances of caries and pathology, radiation protection, typical effective doses, and IR(ME)R duty holders and justification of dental radiographs.

How to Pass the MJDF Part 1 Exam

What You Need to Know

  • Passing score: No fixed pass mark is published in advance. The pass standard is set for each diet using criterion-referenced standard setting, so it can vary between sittings. There is no negative marking.
  • Assessment: A single written paper of 150 machine-marked multiple choice questions, predominantly single best answer (SBA) with some extended matching questions (EMQ). Part 2 is a separate OSCE/clinical examination and is not covered here.
  • Time limit: A single paper of 3 hours (180 minutes).
  • Exam fee: Approximately GBP 522, plus a local administration fee for candidates sitting at overseas British Council centres. Confirm the current fee on the official MJDF website.

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

MJDF Part 1 Study Tips from Top Performers

1Revise against the UK Dental Foundation Training curriculum domains and weight your time toward clinical dentistry, which makes up the largest share of the paper.
2Practise single-best-answer technique: read the lead-in carefully, predict the answer, then pick the single most appropriate option rather than any option that is merely correct.
3Memorise the medical emergency drugs and doses from the SDCEP and Resuscitation Council UK guidance, including adrenaline, glucagon, salbutamol, GTN and oral glucose.
4Learn the maximum safe doses of local anaesthetics (for example lidocaine and articaine) and be able to calculate them for a given patient weight.
5Know GDC Standards for the Dental Team well, especially consent, confidentiality, raising concerns and the duty of candour, as law and ethics questions reward precise rules.
6Use timed mixed question sets because there is no negative marking; never leave an answer blank, and flag and return to difficult items.

Frequently Asked Questions

How many questions are on MJDF Part 1 and how long is the exam?

MJDF Part 1 is a single paper of 150 multiple choice questions, mostly single best answer with some extended matching, sat in 3 hours. There is no negative marking, so you should attempt every question.

Is there a fixed pass mark for MJDF Part 1?

No. The pass standard is set for each diet using criterion-referenced standard setting, so the exact pass mark can vary between sittings rather than being a single fixed percentage.

Who runs the MJDF examination?

The MJDF is run jointly by the College of General Dentistry (formerly the Faculty of General Dental Practice UK) and the Faculty of Dental Surgery at the Royal College of Surgeons of England.

Do I need to have finished foundation training to sit MJDF Part 1?

No. The exam assesses the UK Dental Foundation Training curriculum, but it is open to all dentists with a recognised primary dental qualification and is not restricted to recent graduates or current trainees.

What is the difference between Part 1 and Part 2?

Part 1 is a written multiple choice knowledge paper. Part 2 is a separate clinical examination delivered as an OSCE. You must pass Part 1 before attempting Part 2.

Are these official MJDF questions?

No. These are original OpenExamPrep questions written to match the MJDF Part 1 single-best-answer style and the foundation training curriculum. They are for revision only and are not the official MJDF question bank.