Health Periodontal Disease Gingival sulcus depth<3nm normal gingiva ntal plaque and calculus Normal alveolar Periodontal pocket depth>3mm Inflamed gingiva Alveolar bone resorptionnormal gingiva Normal alveolar Gingival sulcus depth< 3mm Dental plaque and calculus Periodontal pocket depth> 3mm Alveolar bone resorption Inflamed gingiva