ORE Part 2 Periodontology 3 — Questions and Answers
Question 1: Which local drug delivery agent can be placed subgingivally as an adjunct to mechanical debridement?
- Minocycline microspheres or doxycycline gel (Correct answer)
- Systemic amoxicillin only
- Chlorhexidine mouthwash
- Topical fluoride
Correct answer: Minocycline microspheres or doxycycline gel
Locally delivered antibiotics such as minocycline microspheres (Arestin) or doxycycline gel can be placed subgingivally to achieve high local drug concentrations as adjuncts to debridement.
Question 2: What is the main limitation of panoramic radiography for periodontal assessment?
- Magnification distortion and inability to resolve early interproximal bone loss accurately (Correct answer)
- Too much radiation dose
- Cannot image posterior teeth
- Requires special equipment only
Correct answer: Magnification distortion and inability to resolve early interproximal bone loss accurately
Panoramic radiographs have geometric distortion and lower resolution, making them less accurate than periapical films for detecting early interproximal bone loss.
Question 3: What does a positive vertical percussion test in a periodontally involved tooth suggest?
- Acute inflammation in the periodontal ligament (Correct answer)
- Chronic stable periodontitis
- Healthy periodontium
- Carious involvement only
Correct answer: Acute inflammation in the periodontal ligament
Positive vertical percussion indicates acute inflammation or oedema in the periodontal ligament space, which can be associated with acute periodontal abscess or lateral abscess.
Question 4: Which surgical technique is used to achieve root coverage for isolated recession defects?
- Connective tissue graft (subepithelial) (Correct answer)
- Open flap debridement
- Osseous resection
- Widman flap
Correct answer: Connective tissue graft (subepithelial)
The subepithelial connective tissue graft (SCTG) is considered the gold standard for root coverage of Miller Class I and II recession defects.
Question 5: What is the minimum duration of supportive periodontal therapy (SPT) intervals recommended for high-risk periodontal patients?
- Every 3 months (Correct answer)
- Every 12 months
- Every 6 months
- Every 2 years
Correct answer: Every 3 months
High-risk periodontal patients (Grade C, multiple risk factors, previous disease history) should be recalled every 3 months to monitor and maintain treatment outcomes.
Question 6: Gingival hyperplasia is a recognised side effect of which drug commonly used in UK patients?
- Amlodipine (calcium channel blocker) (Correct answer)
- Metformin
- Atorvastatin
- Aspirin
Correct answer: Amlodipine (calcium channel blocker)
Amlodipine and other calcium channel blockers (e.g., nifedipine) are well-recognised causes of drug-influenced gingival enlargement in susceptible individuals.
ORE Part 2 Periodontology 3
Which local drug delivery agent can be placed subgingivally as an adjunct to mechanical debridement?