Gum disease is one of the most common diseases in the world, caused by the accumulation of dental plaque and tartar on teeth. Although gum disease starts with a mild irritaation of the gums, if left untreated it might lead to the loss of teeth and other serious health problems.
Gum disease, (gingivitis or periodontal disease), starts as an inflammation of the gums that if left untreated can affect and gradually destroy the tissues surrounding and supporting the teeth.
Periodontal diseases are infections of the periodontal tissues, which include the gums, periodontal ligament and alveolar bone. Gingivitis and periodontitis are the two main stages of gum disease. Without proper treatment of gum disease, gums start receding and the teeth will finally become loose, fall out or have to be removed by a dentist.
The accumulation of dental plaque and tartar is usually what causes gingivitis, and it's almost always the result of inadequate brushing and flossing. If poor oral hygiene promotes the overgrowth of bacterial plaque, changes in the composition of the plaque occur. The bacterial balance shifts over to gram negative anaerobic bacteria, which are responsible for inflammatory diseases. The bacteria also invade the crevices between the gum and tooth (sulcus) and infect the periodontal tissues. These bacteria that form dental plaque and tartar release toxins that stimulate the body's immune system to over produce powerful infection-fighting factors called cytokines. The immune factors of the body, in their effort to fight the infection, attack the person's own infected cells and periodontal tissues. This way, the supporting tissues of the teeth - gums, connective tissue and alveolar bone - are destroyed. The bacteria most implicated in periodontal disease and bone loss are : Actinobacillus (A.) actinomycetemcomitans and Porphyromonas (P.) gingivalis. Other bacteria linked to gum disease are : Bacteroides (B.) forsythus , T. denticola, T. sokranskii and P. intermedia.
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