FIELD: medicine.;SUBSTANCE: group of inventions relates to medicine, namely to a demonstration tool for comparing the state of dental restoration made of composite resin, a set of artificial teeth for restoration and a method for checking a section of restored samples restored with composite resin. The demonstration tool contains a demonstration plate and demonstration samples in the form of artificial teeth with a formed cavity or a damaged part, restored using composite resin. Each restored sample has an observation surface, including the first surface area, to which the section of artificial teeth extends, and the second surface area, to which the section restored with composite resin extends. The method for checking consists in that the observation surface of the restored sample is irradiated with exciting light of fluorescent material contained in the second surface area to check the restored section by distinguishing between light emission states of the first surface area and the second surface area. ;EFFECT: increase in the number of suitable shades is achieved compared to existing composite resin, other than composite resin with a wide range of colors.;6 cl, 3 dwg
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