Ethics & Law · patient case question
What is the most effective way to deliver oral hygiene instruction to this patient?
Patient case: Seven Restorations and White Lines at the Gumline
Patient: 22-year-old female
Chief Complaint: Routine examination. “My braces came off last year.”
Background: Fixed orthodontic appliances removed 14 months ago. Drinks sweetened iced coffee through the day. Has not been seen for two years. Brushes once daily, does not floss.
Medications: None
Vital Signs: BP 112/70 mmHg · HR 70 bpm · RR 14 · T 98.2°F
Findings: Seven existing restorations. Chalky white demineralized bands along the gingival third of the buccal surfaces of all premolars. Generalized plaque at the gingival margins with marginal erythema. No cavitation.
Show answer and explanation
Correct answer: D. Demonstrate the technique, then have her perform it and describe it back while you observe
- A. Video is a passive medium. It can supplement instruction efficiently but does not confirm that this particular patient can perform the technique.
- B. Written material is a useful take-home reinforcement, but on its own it is the weakest option and is limited by literacy and motivation.
- C. One-directional correction is unlikely to produce sustained change and tends to elicit defensiveness rather than engagement.
- D. CORRECT. Active, two-way instruction with a TEACH-BACK component is consistently the most effective. The patient performs the technique in her own mouth with your feedback, then explains it back in her own words — which confirms comprehension rather than assuming it, and surfaces misunderstandings immediately. Passive one-way delivery reliably produces recall without behaviour change.
Note: This item appeared two or three times in the recall, which tells you the concept is heavily weighted. The pattern to recognise: the correct answer always involves the patient DOING something and giving feedback.