Micromorphologic characteristics of enamel in dogs

The article presents micromorphological features of enamel prisms of teeth in dogs. The study was carried out on the basis of the Department of Animal Diseases and Veterinary and Sanitary Examination of the Federal State Budgetary Educational Institution of Higher Professional Education Vavilov University and the Department of Anatomy and Histology of Animals named after Prof. A.F. Klimov, Moscow State Academy of Veterinary Medicine and Biotechnology – MVA by K.I. Skryabin. The object of the study was mesocephalic dogs (n=40) aged from 2 to 3 years. The incisor group of teeth (n=40) served as a material for the study. We used the method of light microscopy and micromorphometry of tooth micropreparations according to the generally accepted technique. Based on the studies of the microstructure of enamel prisms of dogs, it was revealed that all of them did not have a clear and definite shape with sharply striated edges. The width of the enamel prisms was found to be superior to the length. Their vector, which had a direction towards the root of the tooth, was revealed. Due to the fact that from the side of the tooth crown apex the edges of enamel prisms were covered by the posterior microanatomical structures in the form of their insignificant overlapping, with a separate free edge facing the tooth neck and a closed edge located from the side of the tooth crown apex. This general appearance of the outer surface of the enamel cover presented a mosaic appearance resembling fish scales or. Micromorphologic study of the enamel layer showed that the concentration of enamel prisms was not equal: their maximum concentration occurred at the edges of the tooth enamel, i.e., on the dentin side and the outer surface.