ADC PART 1 · FREE TRIAL · DAY 2 · SESSION 6

ADC Part 1  ·  Free Trial  ·  Day 2

Session 6 of 9  ·  The Examiner Trap Masterclass  ·  60 minutes

✓ Sessions 1–5 ▶ Session 6 — Trap Masterclass ○ Session 7 — Australian Context ○ Session 8 — The Offer

Session 6 — The complete trap taxonomy

There are exactly 12 ways the ADC can fool you. Not 50. Not 100. Twelve.

Every wrong option in every vignette you will ever sit belongs to one of these categories. Once you can name a trap, you cannot unsee it.

All 12 trap categories

1 Outdated guideline 2 Autonomy misapplication 3 Antimicrobial stewardship 4 ARPANSA violation 5 Anchoring 6 Premature closure 7 Drug class confusion 8 Scope creep 9 Over-referral 10 Open disclosure sequence 11 Informed consent gap 12 IPC breach response
Trap 1 Outdated Guideline

The correct answer changed with TG September 2025. The wrong option reflects what was correct in an older edition, an international formulary, or a non-Australian textbook.

Example question

A healthy adult presents with post-operative pain after a routine extraction. Which analgesic is most appropriate?

AIbuprofen 400mg every 8 hours alone
BParacetamol 1g every 6 hours alone
C ✓Paracetamol 1g every 6 hours alternating with ibuprofen 400mg every 8 hours
DCodeine phosphate 30mg every 4 hours
Why C: TG Sept 2025 updated first-line post-operative dental analgesia to alternating combination therapy for all healthy adults.
The trap: Candidates select A or B — both were acceptable in previous TG editions. The update mandates the combination.
Trap 2 Autonomy Misapplication

The candidate agrees to the patient's request without first providing the clinical information required for a genuinely informed decision. Autonomy requires understanding before consent — not after.

Example question

A patient asks to have a vital molar extracted rather than have root canal treatment, citing cost. What is most appropriate?

AAgree to extraction — it is the patient's choice
BRefuse extraction and insist on root canal treatment
C ✓Explain the clinical consequences of extraction, present alternatives, confirm understanding, then proceed if the patient still requests extraction
DRefer to an endodontist before making any decision
Why C: The patient cannot make a genuinely autonomous decision without understanding the clinical consequences — mesial drift, over-eruption, replacement options and costs.
The trap: Candidates select A, treating the patient's stated preference as sufficient. AHPRA requires information exchange before the decision is accepted.
Trap 3 Antimicrobial Stewardship

Antibiotics prescribed for pulpal or periapical pathology without systemic features. TG Sept 2025 is explicit: no antibiotics for irreversible pulpitis, periapical granuloma, or localised abscess without fever, trismus, cellulitis, or lymphadenopathy.

Example question

A patient presents with irreversible pulpitis and acute apical periodontitis. Significant pain. No swelling, no fever, no trismus. Most appropriate management?

APrescribe amoxicillin 500mg three times daily for 5 days and review
BPrescribe metronidazole and arrange root canal treatment
C ✓Arrange root canal treatment or extraction and prescribe paracetamol/ibuprofen alternating for pain
DPrescribe amoxicillin and arrange root canal treatment at the next appointment
Why C: No systemic features are present. TG Sept 2025 is clear: antibiotics are not indicated. Treatment is drainage, pulp therapy, or extraction. Analgesia for pain.
The trap: Candidates select A or D, associating periapical infection with antibiotic prescription. This is the most common error in the trial exam.
Trap 4 ARPANSA Violation

Selecting a higher-dose or broader view when a targeted investigation answers the clinical question at lower dose. The OPG is almost always the trap in radiology questions.

Example question

A patient presents with pain on the lower right first molar. You need to assess interproximal caries and periapical status. Which radiograph is most appropriate?

AOrthopantomogram (OPG)
BBitewing radiograph right posterior only
C ✓Periapical of the lower right first molar and a bitewing radiograph
DCBCT of the lower right quadrant
Why C: ARPANSA requires minimum dose. Periapical answers periapical status; bitewing answers interproximal caries. Combined dose is lower than OPG with superior resolution.
The trap: Candidates select A (OPG) for convenience. Higher dose, lower resolution for a single-tooth query — fails ARPANSA individual justification principle.
Trap 5 Anchoring

Fixating on one word or feature in the vignette — warfarin, cardiac, immunocompromised — and selecting an answer based on that word without reading the qualifying detail that resolves the question.

Example question

A 64-year-old patient on warfarin for AF with INR 2.4 requires a simple extraction. Most appropriate action?

AStop warfarin 5 days before extraction
BConsult cardiologist before proceeding
C ✓Proceed with extraction using local haemostatic measures
DReduce warfarin dose for 3 days preoperatively
Why C: INR 2.4 is within therapeutic range. TG Sept 2025: do not stop warfarin for simple extractions within therapeutic range. The INR value resolves the question.
The trap: Candidates anchor on "warfarin" and "extraction" and select A or B without reading the INR value that makes those responses unnecessary and harmful.
Trap 6 Premature Closure

The first plausible option is selected without applying the Australian benchmark. The answer is clinically reasonable in a general sense but does not satisfy the specific standard being tested.

Example question

After extracting a lower molar, which prosthodontic option is most appropriate?

AImmediate implant placement
BRemovable partial denture after healing
CFixed bridge using adjacent teeth
D ✓No replacement until the patient has assessed their functional and aesthetic concerns
Why D: The patient has not yet experienced the gap or formed a view. The Australian standard requires patient input before prescribing any replacement option.
The trap: Candidates select B — clinically reasonable, sounds responsible. But it prescribes a treatment before the patient has been consulted, failing the autonomy cluster.
Trap 7 Drug Class Confusion

A contraindication is applied to the wrong drug class. Most commonly: MAOI interactions applied to SSRIs, or beta-blocker adrenaline interactions applied to calcium channel blockers.

Example question

A patient takes sertraline (SSRI) for depression. Post-operatively, which analgesic is most contraindicated?

AParacetamol 1g every 6 hours
B ✓Tramadol 50mg every 6 hours
CIbuprofen 400mg every 8 hours
DBoth B and C
Why B: Tramadol has serotonergic activity. Combined with sertraline, it carries risk of serotonin syndrome — a potentially life-threatening interaction flagged specifically in TG Sept 2025.
The trap: Candidates select C (NSAID/SSRI GI bleeding is real but secondary) while missing that tramadol is the primary contraindication due to serotonergic activity.
Trap 8 Scope Creep

Clinical advice is given that falls outside the scope of dental practice — typically commenting on, adjusting, or advising on medications managed by the patient's GP or specialist.

Example question

A patient mentions she has been feeling low and asks whether she should continue her antidepressant. How should you respond?

AAdvise her to continue — stopping suddenly is dangerous
B ✓Acknowledge her concern and encourage her to discuss it with her GP
CSuggest she reduces the dose gradually
DReassure her that sertraline is safe
Why B: Antidepressant management is within the GP's scope. AHPRA requires practitioners to work within their professional competence and refer appropriately.
The trap: Candidates select A — pharmacologically correct, but outside scope. Even a correct statement about medication management is scope creep if it substitutes for GP advice.
Trap 9 Over-Referral

A clinical problem within GP scope is referred to a specialist. The vignette is testing whether the candidate knows their scope — not whether they are cautious.

Example question

A patient with well-controlled hypertension on amlodipine requires a routine composite restoration. Most appropriate?

ARefer to a hospital dental clinic given the cardiac history
BConsult the cardiologist before proceeding
C ✓Proceed with the restoration using standard technique and LA with adrenaline
DUse LA without adrenaline to avoid cardiovascular risk
Why C: Well-controlled hypertension on amlodipine is not a contraindication to routine dental treatment. Standard LA with adrenaline at dental doses is safe. This is within GP scope.
The trap: Candidates select A or B, over-escalating a routine situation. Drug class confusion (amlodipine vs beta-blockers) often combines with over-referral here.
Trap 10 Open Disclosure Sequence

A step in the AHPRA open disclosure sequence is omitted, the order is reversed, or an informal apology substitutes for structured disclosure. Triggered by clinical error or adverse event — regardless of whether harm occurred.

Example question

During root canal treatment you notice a single-use file was reused from a previous patient. Most appropriate immediate action?

AComplete the procedure and report the incident after
B ✓Stop, remove the file, inform the patient, complete with a sterile instrument, complete an incident report, review the IPC protocol
CReplace the file without informing the patient — no harm has occurred
DRefer to hospital for infection risk assessment
Why B: AHPRA open disclosure is triggered at the moment of discovery, in sequence: stop, disclose, remediate, document, review. The absence of harm does not remove the obligation.
The trap: Candidates select C — no harm, no disclosure needed. AHPRA open disclosure is triggered by the incident, not by the outcome.
Trap 11 Informed Consent Gap

Treatment proceeds before the patient has received, understood, and agreed to material information about clinical implications, sequencing, or alternatives. The consent form exists but the process has been bypassed.

Example question

A patient requests full-mouth vital bleaching after seeing advertising. She has active caries and an existing composite. At what stage should bleaching occur?

APrior to any other treatment
BAfter removal of all calculus
C ✓After the placement of definitive restorations
DImmediately — the patient has requested it and consented
Why C: Composites and ceramics do not bleach. Bleaching before definitive restorations causes shade mismatch. The clinician must explain the treatment sequence — not simply accept the patient's request.
The trap: Candidates select D, treating the patient's request as sufficient consent. Informed consent requires the patient to understand the clinical implications of timing.
Trap 12 IPC Breach Response

An IPC breach is identified during a procedure. The candidate completes the procedure with the compromised instrument or fails to disclose the breach to the patient.

Example question

A reusable instrument used on the current patient had a torn sterilisation pouch — sterility cannot be confirmed. The procedure is halfway complete. Most appropriate?

AComplete the procedure — stopping causes more harm
B ✓Stop immediately, inform the patient, replace with a confirmed sterile instrument, document the incident, review the sterilisation protocol
CComplete the procedure and inform the patient at the end
DComplete and inform the practice manager only
Why B: A torn pouch means the instrument is classified as unsterile. DBA IPC guidelines require immediate cessation. AHPRA open disclosure applies at discovery — not at the practitioner's convenience.
The trap: Candidates select A or C, prioritising procedural completion. AHPRA open disclosure is triggered at the moment the breach is identified, not after.

The Three Traps Most Candidates Fall Into on Day 1

Across every sitting of this trial, three categories account for the majority of errors. They are not the hardest traps clinically — they are the most common because they reflect habits from international training that feel correct under Australian exam conditions.

Most common

Antimicrobial stewardship

Antibiotics for pulpal/periapical conditions without systemic features

Very common

Outdated guideline

Pre-TG Sept 2025 analgesic or anticoagulant management

Very common

Autonomy misapplication

Agreeing without informing — treating compliance as autonomy

Watch — Session 6

The Examiner Trap Masterclass — Instructor Video

11 minutes  ·  Direct to camera

Session 6 complete

You now have the complete trap taxonomy. Session 7 shows you how three specific Australian regulations appear as live clinical decisions.

AHPRA open disclosure. TG September 2025. ARPANSA radiograph justification. ADA IPC 2022.

Each one as a 2-minute case. Each one showing exactly how the exam tests it.

Session 7 → The Australian Context Deep Dive — AHPRA, TG Sept 2025, ARPANSA, IPC