Periodontology

Critical Measurements

• PMN threshold: 60% in junctional epithelium → tissue detachment
• Clinical significance: Level 1 provides tangible benefit of large size

Important Ratios & Numbers

• GCF glucose: 3 – 4× serum levels
• Aggressive vs chronic periodontitis: 3 – 4× faster bone loss
• Mineralization timeline: 50% (2 days), 60 – 90% (12 days)