SCANNING ELECTRONIC MICROSCOPY OF HARD DENTAL TISSUES AT HYPERFUNCTION OF PARASCHITROID .
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Abstract
It is generally accepted that the barrier-protective function of the tooth as a whole is composed of three levels. Of primary importance is the condition of the surface of the enamel with its organic shells cuticle, pellicle, microbial plaques, etc. Enamel prisms, approaching the tooth surface thickening and forming a smooth and even surface, without any defects. Violation of the integrity of the enamel, the appearance of ultramicroscopic cracks, fractures leads to a significant deterioration of the barrier-protective mechanisms already in the deeper layers, in particular in the dentin. Dentinal tubules, on the enamel-dentinal border and on the side of the predentine and odontoblasts. Defects of the enamel surface serve as a kind of entrance gate and trigger a chain of destructive changes. The 3-level defense mechanism includes the pulp, which fights against penetrating microorganisms by cellular and humoral mechanisms [1].
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