Among many substances used in clinical diagnosis, such as peripheral blood, gum homogenate, saliva and gingival pocket fluid, it is the latter that seems to bean extremely valuable diagnostic and research material. Identification of mediators in gingival crevicular fluid, both in the healthy gingival fissure, as well as in pathological periodontal pockets can be a valuable supplement to the initial diagnosis and describe the mechanism of gumorperiodontal diseases.
Changes in the concentration of individual components in the gingival crevicular fluid may be used to assess the severity of periodontal disease.
There are numerous methods for collecting fluid from the sulcus described: Micro-capillary drainage, micropipette drainage, rinsing pocket or drainage with the use of methylcellulose strips and then reading with Periotron.
Gingival fluid is composed mainly of blood electrolytes and organic molecules, i.e. albumins, globulins, lipoproteins or fibrinogen and cellular components as well as peptides, bacteria and enzymes.
Therefore gingival crevicular fluid (GCF) is treated as a window for noninvasive analysis of periodontitis, taking into account indicators and markers of connective tissue and bone destruction.
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