Сучасний погляд на морфологічні аспекти контактного карієсу

Abstract

Abstract. In computer tomography, the caries is visualized in the form of a hidden under the enamel of the defect, the pathomorphological data of which are absent in the literature. Study of epoxy resins of upper premolars affected by contact caries has allowed to establish that within the external, weakly expressed, damage to the approximative surface of the tooth crown is maintained on the entire thickness of the destructive enamel site, which in the form of a plug closes the carious cavity, the bottom of which is the surface layer of dentin, which is typical for middle caries. In this case, the damage zone of the enamel is projected in relation to the pulp camera with a beam-like heavy displaced dentin, the structure of which displays the fan-radial orientation of destructive dentinal tubules, known in the literature called "dead tracts." That is why, in contact middle caries, the carious cavity, as such, is in fact absent. The visibility of this in computed tomography is due to the fact that carrional alteration of dentin is accompanied by demineralization and its loosening, resulting in a significant decrease in its total density.