17.4 Final Review & Key Points

What MFDS Part 1 Tests

MFDS Part 1 examines whether a dentist at DCT level can apply a broad knowledge base to clinical scenarios. The exam is not rote recall — it rewards understanding and reasoning: choosing the best diagnosis, the most appropriate first action, the best investigation, and the safest prescribing decision. Across the six domains, recurring themes are patient safety, evidence-based choice, and the management of common conditions.

The Final-Review Checklist

Use this as a last-week review — tick each area and re-rehearse any weak topic.

Clinical Dentistry (40%)

• Caries: diagnosis, critical pH (~5.5 enamel), prevention (fluoride, fissure sealants), management by lesion depth.
• Operative dentistry: cavity design, materials choice, adhesive principles (hybrid layer, C-factor).
• Endodontics: pulp/periradicular diagnosis, access, irrigation (NaOCl), obturation, the AAE 2009 classification of pulpal/apical disease.
• Periodontology: plaque biofilm, periodontopathogens (red complex, A. actinomycetemcomitans), BPE, treatment staging, systemic links.
• Prosthodontics: fixed (preparation, retention/resistance) and removable (support, retention, border seal).
• Paediatric dentistry: behaviour management, caries management, trauma (IADT guidelines), stainless-steel crowns, the developing dentition.
• Orthodontics: IOTN, interceptive treatment, anchorage.
• Oral surgery: extraction indications/contraindications, third molar assessment, complications, implants.
• Trauma: luxation, avulsion (immediate reimplantation, storage media), splinting durations.

Human Disease (20%)

• Medical emergencies (automatic recall): anaphylaxis (IM adrenaline 0.5 mg), hypoglycaemia, syncope, seizures, chest pain (aspirin 300 mg), asthma (salbutamol).
• Cardiovascular: hypertension, ischaemic heart disease, anticoagulation (INR, DOACs).
• Respiratory: asthma, COPD.
• Endocrine: diabetes (DKA/HHS), thyroid.
• Haematology: anaemia, sickle cell, bleeding disorders, anticoagulants and dental management.
• Infection: viral hepatitis, HIV, tuberculosis — relevance to dental management.
• The medically compromised patient: modifying treatment for systemic disease.

Oral Pathology & Oral Medicine (15%)

• White lesions: leukoplakia, lichen planus, candidiasis.
• Vesiculobullous: pemphigus (acantholysis, Nikolsky), pemphigoid (subepithelial), erythema multiforme.
• Ulcers: aphthous, traumatic, malignant — referral for an ulcer >3 weeks.
• Cysts: radicular, dentigerous, odontogenic keratocyst (OKC), nasopalatine.
• Tumours: ameloblastoma, odontoma, squamous cell carcinoma.
• Salivary: obstruction (sialolith), mumps, Sjögren's, neoplasia (pleomorphic adenoma).
• Orofacial pain: TMD, trigeminal neuralgia, atypical facial pain.

Pharmacology (10%)

• LA: maximum doses (lidocaine 4.4 mg/kg, articaine 7 mg/kg), toxicity, methaemoglobinaemia (prilocaine), adrenaline contraindications.
• Analgesia: paracetamol, NSAIDs (cautions — asthma, renal, GI, anticoagulation, lithium, pregnancy).
• Sedation: nitrous oxide, midazolam (antagonist flumazenil), indications/contraindications.
• Antimicrobials: first-line amoxicillin/metronidazole, stewardship (AWaRe), when NOT to prescribe, infective endocarditis prophylaxis (NICE — not recommended).
• Interactions: warfarin + metronidazole/miconazole (avoid), macrolide + statin, NSAID + lithium, tetracycline chelation.

Materials, Microbiology, Radiology (10%)

• Materials: amalgam phases (γ, γ₁, γ₂; high-Cu), composite (Bis-GMA, polymerisation shrinkage, bonding), GIC (chemical bond, fluoride), cements and impression materials (addition silicone vs polyether).
• Microbiology: biofilm, S. mutans, periodontopathogens, infection control (standard precautions, DUWLs ≤100 CFU/mL, HTM 01-05, prions/endodontic files single-use).
• Radiology: paralleling vs bisected-angle, selection criteria (ALARP/IRMER), panoramic/CBCT, technique errors (cone-cut, foreshortening, elongation).
• Radiation protection: rectangular collimation, inverse square law, pregnancy, dose limits, IRR17/IRMER.

Law, Ethics, Professionalism & EBD (5%)

• Consent: elements, MCA (best interests), Gillick, Montgomery (material risks).
• Confidentiality: GDPR/Data Protection Act, public-interest disclosure.
• GDC Standards, scope of practice, CPD, indemnity, fitness to practise.
• Safeguarding: child abuse categories, head-and-neck signs, Care Act 2014 (adults), duty of candour (CQC Reg 20).
• EBD and statistics: hierarchy of evidence, PICO, study designs, Type I/II errors and power, diagnostic test measures (sensitivity/specificity vs PPV/NPV), correlation vs causation, ITT analysis, GRADE.

How to Use the Final Week

1. Re-rehearse protocol topics to automaticity — emergency drugs and doses, LA max doses, the warfarin prescribing algorithm.
2. Drill the high-frequency lesion and pharmacology stems with quick-recall cards.
3. Do timed practice questions in the final days to calibrate pace.
4. Skim the checklist above and re-rehearse any ticked-but-weak area.
5. Rest the day before — cramming fatigues and underperformance follows.

Pairing Facts with Rationale

Facts memorised without rationale are fragile. For each high-yield fact, know the why:

• IM adrenaline for anaphylaxis because it reverses bronchospasm, vasodilation, and oedema.
• No endocarditis prophylaxis because evidence does not support a causal link from dental procedures.
• Metronidazole + warfarin is avoided because CYP2C9 inhibition raises INR.
• A torn frenum in a non-mobile infant is concerning because non-mobile infants should not sustain such injuries.

Rationale makes recall robust and supports reasoning on stems you have not seen before.

The Pathway Forward

• Pass MFDS Part 1 (new format: 180 SBA across 2 papers; modified Angoff pass mark).
• MFDS Part 2 — the 14-station OSCE assessing clinical and communication skills across realistic scenarios.
• DCT (Dental Core Training) — the COPDEND curriculum the exam maps to; DCT2/3 posts.
• Further training — specialist training pathways, building on the knowledge base you have consolidated here.

The knowledge you have built for Part 1 is the foundation for safe, evidence-based clinical practice throughout your career. Review, rehearse, and approach the exam with confidence in the preparation you have done.