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Pulpitis - inflammation of the dental pulp
16-09-2009
At sufficiently strong stimuli slurry reacts with inflammation, which occurs in such a way as any inflammation of the connective tissue of the human body. Characteristic features of the flow structure caused by inflammation of the pulp surrounding solid mineralize ¬ bathroom tissue.
Inflammation begins with nasal vasodilatation. Result of increased circulation is red cloth.
If the intensity of the influence of stimulation is not reduced, in association with increased microvascular permeability of the plasma beyond the walls of capillaries and edema of the affected area is formed tissue. Because of the limited space and in relation to the above reasons, the expansion of the pulp is not possible, then the va-zodilatatsiya and extravasation of plasma increases the pressure in the tissue.
In the classical theories of inflammation of the pulp, this view prevailed. This zone, which increase in pressure and the resulting compressed venules is infringing, then necrosis of the pulp.
However, the results of recent studies do not confirm this theory. Even large areas of inflammatory changes of the pulp is not always accompanied by cessation of blood circulation. In modern theories of hemodynamics pulpitis is described as follows: healthy pulp has a quite intense blood flow, which did not significantly affect vazodilatornye substance. In general or local pressure increase arteriovenous anastomoses cause a rapid redistribution of blood flow.
When inflammation directly in the inflammation slightly increases the intensity of blood flow. This increase in capillary permeability is more important than increasing the intensity of blood flow.
Outflow of edematous fluid from the inflamed tissue occurs through the lymphatic system or blood vessels associated nevospalennyh sites.
When inflammation of the diffuse swelling of the pulp is prevented due to the fact that increasing pressure in the tissue section is limited to inflammation, as well as by the increasing intensity of the lymph drainage, increasing the drainage of fluid and plasma of its income in the capillaries of the adjacent healthy tissue.
Pulp reaction to stimulation of the emergence of the focus of local inflammation, the limited area of impact.
Under the influence of the stimulus of moderate intensity such inflammation may last for a long time. After removal of the stimulus, such as dental caries, inflammation can be cured. The pulp has a high resistance. Only with prolonged exposure to the stimulus of sufficient intensity of the inflammation extends to the whole pulp. In most cases, the inflammatory process slowly spreads from the periphery to the central portion of the pulp and root pulp. The inflammation can cause tissue necrosis of the pulp until the top of the root.
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