Gingivitis ,the inflammation of the gingiva in which the junctional epithelium remains attached to the tooth at its original level. It presents with:
Gingival redness
Swollen and shiny gingival tissue
Increased tendency of the gingiva to bleed on gentle probing or spontaneously, during tooth brushing or even on touch and on biting bread and fruits
Bad breath from the mouth

Periodontitis, damage of the periodontal membrane, periodontal ligaments and eventually alveolar bone leading to formation of pockets which eventually favor more bacterial growth. It presents with:
Reddened, swollen gingiva
Easily bleeding gingival on gently probing
Periodontal pocket
Loose/mobile teeth
Bad breath from the mouth
Gingival recession
