Periodontology Flashcards

According to the 2017 World Workshop classification, what differentiates Stage III from Stage IV periodontitis?

Answer: Tooth loss due to periodontitis and masticatory dysfunction

Stage IV periodontitis includes all Stage III features plus tooth loss attributable to periodontitis and evidence of masticatory dysfunction, indicating a more severe disease burden.

What is the first-line active treatment for Stage II periodontitis according to current BSP guidelines?

Answer: Cause-related therapy: oral hygiene instruction and subgingival debridement

BSP guidelines prioritise non-surgical cause-related therapy, including thorough oral hygiene instruction and subgingival instrumentation, as the first step in managing Stage II periodontitis.

Which systemic condition has the strongest evidence for bidirectional association with periodontitis?

Answer: Type 2 diabetes mellitus

Type 2 diabetes and periodontitis have a well-evidenced bidirectional relationship; poor glycaemic control worsens periodontal disease and vice versa.

In the 2017 periodontal classification, what does Grade C periodontitis indicate?

Answer: Rapid progression with risk factors such as smoking or diabetes

Grade C indicates rapid disease progression, often associated with risk factors such as heavy smoking (≥10 cigarettes/day) or poorly controlled diabetes (HbA1c ≥7%).

What is the significance of a bleeding on probing (BOP) score above 25% during supportive periodontal therapy?

Answer: Indicates unresolved inflammation and increased risk of disease progression

A BOP score above 25% during supportive care indicates persistent gingival inflammation, a predictor of further attachment loss and need for treatment modification.

Which furcation classification describes a probe passing completely through a furcation (through and through)?

Answer: Class III (Hamp)

A Class III furcation involvement (Hamp classification) means the probe passes completely through the furcation from one side to the other.