ORE Part 2 Periodontology 4

Question 1

What is the BPE (Basic Periodontal Examination) code that indicates a need for complex treatment (specialist referral consideration)?

Accepted Answer

Code 4

Answer

BPE Code 4 indicates pocket depths of 6 mm or more, requiring complex periodontal treatment and consideration of specialist referral for appropriate management.

Question 2

Which instrument design is most effective for subgingival debridement in a narrow 5 mm pocket?

Accepted Answer

Gracey curette (e.g., Gracey 11/12 for mesial surfaces)

Answer

Area-specific Gracey curettes are designed to adapt to specific root surfaces, providing effective subgingival debridement in defined pocket depths.

Question 3

What is the primary aim of periodontal regeneration using GTR (guided tissue regeneration)?

Accepted Answer

Selective repopulation of periodontal ligament cells before epithelium

Answer

GTR uses membranes to exclude epithelium and gingival connective tissue, allowing PDL and bone cells to repopulate the defect and achieve true periodontal regeneration.

Question 4

Necrotising periodontal disease (NPD) is characterised by which pathognomonic feature?

Accepted Answer

Necrosis and punched-out interdental papillae with pseudomembrane

Answer

NPD presents with necrosis and ulceration of interdental papillae, which appear punched-out with a grey pseudomembranous slough, often with pain and halitosis.

Question 5

Which risk factor has the strongest evidence for worsening periodontal disease outcomes?

Accepted Answer

Cigarette smoking

Answer

Cigarette smoking is the most robustly evidenced modifiable risk factor for periodontitis, associated with deeper pockets, more bone loss, and poorer treatment outcomes.

ORE Part 2 Practice Test

ORE Part 2 Practice Test

ORE Part 2 Periodontology 4