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Gingival sulcus, also known as gingival crevice, refers to the space between the tooth surface and the sulcular epithelium. At the free gingival margin, the sulcular epithelium is continuous with the gingival epithelium. Both the attached gingivae and the free gingivae are included as part of the gingival epithelium.
The gingival tissue forms a crevice surrounding the tooth, similar to a miniature, fluid-filled moat, wherein food debris, endogenous and exogenous cells, and chemicals float. The depth of this crevice, known as a sulcus , is in a constant state of flux due to microbial invasion and subsequent immune response.
Leukocytes and neutrophils are the main cells that phagocytose bacteria found in the gingival crevice or pocket. They migrate from the tissues in a specialized exudate called gingival crevicular fluid also known as GCF. Neutrophils are recruited to the gingival crevice area as they are signalled to by molecules released by plaque microorganisms.
The gingival fibers, (H), extend from the cementum (B) into the attached gingiva. Some fibers extend coronally into the crest of the free gingiva, some horizontally, and still other extend horizontally over the crest of the alveolar bone, (C) , and then apically to connect on the facial aspect of the buccal plate of the alveolar bone.
The most common gingival disease is gingivitis, the earliest stage of gingival-related diseases. Gingival disease encompasses all the conditions that surround the gums, this includes plaque-induced gingivitis, non-dental biofilm plaque-induced gingivitis, and periodontal diseases .
More than 800 species of bacteria colonize oral mucus, 1,300 species are found in the gingival crevice, and nearly 1,000 species comprise dental plaque. The mouth is a rich environment for hundreds of species of bacteria since saliva is mostly water and plenty of nutrients pass through the mouth each day.
Scientists are torn about why a massive crack in the earth suddenly appeared outside Nairobi, Kenya.
Gingivitis is a non-destructive disease that causes inflammation of the gums; [1] ulitis is an alternative term. [2] The most common form of gingivitis, and the most common form of periodontal disease overall, is in response to bacterial biofilms (also called plaque) that are attached to tooth surfaces, termed plaque-induced gingivitis.
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