MJDF Practice Test

MJDF Study Tips

• Create a structured study schedule at least 4-6 weeks before your MJDF exam date.
• Focus on understanding core concepts rather than memorising answers for the Membership of Joint Dental Faculties Part 1.
• Use our free practice tests to identify weak areas and track your progress over time.
• Review the official MJDF exam syllabus to ensure complete topic coverage.
• Take timed practice sessions to build your exam pace and reduce test-day anxiety.

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Sample MJDF Part 1 Practice Questions

Try these questions from our free MJDF Part 1 practice tests. The correct answer and an explanation follow each question.

1. A heavily restored, endodontically treated lower first molar has lost both marginal ridges. The patient is otherwise dentally fit and the tooth is functional. What restorative approach is MOST appropriate?

   • A. Large direct composite restoration replacing both missing marginal ridges
   • B. Extraction and implant placement as the tooth is unrestorable
   • C. Cuspal coverage restoration (e.g. onlay or crown) to protect the remaining tooth structure
   • D. Observation only, as endodontically treated teeth do not require additional protection

Answer: C. Cuspal coverage restoration (e.g. onlay or crown) to protect the remaining tooth structure

Loss of both marginal ridges combined with endodontic treatment dramatically increases the risk of catastrophic cuspal fracture, as the tooth is both structurally weakened and less sensitive to damaging loads. Cuspal coverage distributes occlusal forces and prevents vertical root fracture, making it the evidence-based choice in this scenario.

Answer: C. Medication-Related Osteonecrosis of the Jaw (MRONJ)

Alendronic acid is an oral bisphosphonate. Patients taking anti-resorptive drugs, such as bisphosphonates, are at an increased risk of developing Medication-Related Osteonecrosis of the Jaw (MRONJ) following invasive dental procedures like extractions. The SDCEP provides specific guidance for risk assessing and managing these patients to minimise the chance of MRONJ developing.

Answer: A. Epstein-Barr virus (EBV)

Oral hairy leukoplakia is caused by Epstein-Barr virus replicating in lateral tongue epithelium in immunosuppressed patients (most commonly HIV-positive); it appears as a white corrugated lesion that cannot be wiped off.

Answer: B. Leukoplakia — a potentially malignant disorder requiring biopsy to exclude dysplasia

A white patch that cannot be wiped off is a leukoplakia by definition. As a potentially malignant disorder with variable rates of malignant transformation, it requires biopsy and histological examination to assess for dysplasia.

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