Stage of periodontal disease is indicated as which number?

• A. 2
• B. 4
• C. 3
• D. 5

Answer: (B)

Staging reflects how much support has been lost and how complex the disease is to manage. In this scale, higher numbers mean more severe impact. A stage 4 designation indicates advanced periodontitis with substantial attachment loss and bone loss, often accompanied by tooth mobility, furcation involvement, possible bite collapse, and significant functional impairment. This level usually requires complex treatment planning, potentially including surgical therapy and tooth replacement considerations, rather than simpler, non-surgical approaches used for milder stages. So the indicated stage being 4 makes sense as the most severe option in this set. The lower numbers correspond to less severe disease (stage 2 is milder, stage 3 is severe but typically still salvageable with comprehensive therapy), and a fifth option isn’t part of this four-stage framework.