10 exam-style questions with answers and explanations, straight from our 1,030-question bank. Tap an answer to check yourself. When you're ready, take the scored version in the free practice test.
The MJDF Part 1 exam has 180 questions and runs 4 hours.
These 10 free MJDF Part 1 questions are organized by exam domain, so you can see how each part of the Membership of the Joint Dental Faculties Part 1 (MJDF Part 1) blueprint is tested. Reveal the answer and explanation under each question.
At review, a 58-year-old smoker has a painless 14 mm ulcer on the lateral tongue. It has persisted for 4 weeks despite removal of an adjacent sharp cusp and is indurated on palpation. What is the single best next step?
Correct answer: C - Make an urgent suspected-cancer referral with full clinical details
A BEWE chart records worst-surface scores of 2, 2, 3, 1, 2, and 1 across the six sextants. Which interpretation should be recorded?
Correct answer: A - Medium risk: investigate the cause in detail and review in 6-12 months
A patient who is 10 weeks pregnant presents with severe localised pain from a mandibular molar. A periapical image is expected to change the endodontic treatment plan. What should the dentist do?
Correct answer: D - Take a justified, optimised periapical radiograph now
Seconds after receiving an antibiotic, an adult develops hoarseness, wheeze, widespread urticaria, and hypotension. Which first-line drug, dose, and route are indicated?
Correct answer: B - Adrenaline 500 micrograms intramuscularly into the anterolateral thigh
A 72-year-old patient taking stable warfarin requires the simple extraction of one tooth. The INR was 3.6 when checked the previous day, and there is no additional bleeding disorder. Which plan is most appropriate?
Correct answer: A - Continue warfarin and use local haemostatic measures
Three days after a mandibular molar extraction, a patient reports severe deep pain radiating to the ear and an unpleasant taste. The socket is largely empty, but there is no fever, facial swelling, or trismus. Which management best fits these findings?
Correct answer: C - Irrigate gently, provide analgesia, and use a dressing if needed
During an adult Basic Periodontal Examination, the probe's black band is partly visible at the deepest site in one sextant, with no furcation involvement. What is the minimum appropriate recording and follow-up?
Correct answer: B - Record code 3 and chart six sites in that sextant
A 42-year-old patient with periodontitis has 50% radiographic bone loss at the worst site. Five-year progression data are unavailable. The patient smokes 5 cigarettes daily and has diabetes with an HbA1c of 6.5%. Which grade is indicated?
Correct answer: D - Grade C, because the bone-loss-to-age ratio is greater than 1.0
A vital, asymptomatic mandibular molar has a deep carious lesion close to the pulp, normal sensibility responses, and no apical changes. During treatment, the peripheral enamel-dentine junction is hard, but soft dentine remains over the pulp. What should be done next?
Correct answer: C - Leave soft dentine pulpally and place a durable sealed restoration
A mandibular molar causes spontaneous nocturnal pain. Cold produces pain that lingers for about 60 seconds, heat worsens it, and control teeth respond normally. The tooth is not tender to percussion and has no apical radiographic change. What is the pulpal diagnosis?
Correct answer: A - Symptomatic irreversible pulpitis
The MJDF Part 1 exam also covers these domains. Drill them in the full free practice test:
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