Micromorphological features of the structure of the tooth pulp chamber wall in dogs
https://doi.org/10.52419/issn2072-2419.2025.1.222
Abstract
The article presents micromorphological features of the pulp chamber wall of a tooth and its structural elements in a dog. 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=15) aged from 2 to 3 years. The incisor group of teeth (n=15) served as the material for the study. Microscopic examination and micromorphometry were performed on a digital microscope LEICA LMD 7000 (Germany). Based on the results of the study, it was found that the pulp cavity wall was formed by intertubular dentin with the ends of dentin tubes protruding above it. This type of dentin is represented by a homogeneous mass of gray color, while the protruding ends of its tubes have different length, diameter and various bends. The study of the wall part of dentin showed an increase in the length of its tubules with a simultaneous decrease in their diameter. It is revealed that due to various bends of tubules on the surface of intratubular dentin they acquire a fragmentary appearance. In deeper layers of dentin, compared to the surface of the pulp chamber, the predominance of intratubular dentin is noted, which leads to a wider arrangement of dentinal tubules between each other.
About the Authors
V. V. FrolovRussian Federation
Frolov V.V. – Doctor of Biological Sciences, Professor of the Department of Animal Disease and Veterinary Sanitary Expertise
A. V. Egunova
Russian Federation
Egunova A.V. – Candidate of Biological Sciences, Associate Professor of the Department of Animal Disease and Veterinary Sanitary Expertise
V. A. Ivantsov
Russian Federation
Ivantsov V.A. – Candidate of Biological Sciences, Associate Professor of the Department of Anatomy and Histology of Animals named after Prof. A.F. Klimov
References
1. Arushanyan, A. G. Ontogenesis of permanent teeth of dogs and justification for the treatment of carious-pulpitic lesions: ...dis. kand. vet. sciences / A.G. Arushanyan. - Stavropol, 2012. - 150 p.
2. Zolotorev, V. M. Structural organization of dentin tubes in the crown zone of the tooth / V. M. Zolotorev // Institute of Stomatology. - 2006. - № 2. - P. 78-80.
3. Iyashvili, L. V. Method for determining the natural dentin moisture content in clinical conditions / L. V. Iyashvili, Yu. A. Vinnichenko, A. V. Vinnichenko // Medical Alphabet. - 2020. - № 12. - P. 36-39.
4. Micromorphological characterization of dental hard tissues in dogs of different age groups / Ya. I. Novikov, V. V. Frolov et al. // Veterinary, zootechnics and biotechnology. - 2023. - № 12. - V. 1. - P. 45-53.
5. Slesarenko, N. A. Clinical anatomy of the dental organ of the dog / N. A. Slesarenko, V. A. Ivantsov. - 2nd edition, supplemented. - Moscow: LLC “Academy Print”, 2024. - 122 p.
6. Slesarenko, N. A. Micromorphological characterization of dentin in representatives of the family Canidae / N. A. Slesarenko, V. A. Ivantsov // Morphology. - 2017. - V. 151. - № 3. - P. 104.
7. Falin, L. I. Histology and embryology of the oral cavity and teeth / L.I. Falin. - Moscow: Medicine, 1963. - 220 p.
8. Frolov, V. V. Dentition and generation of teeth in dogs / V.V. Frolov -M.: ICC “KolosS”, 2020. - 255 p.
9. Frolov, V. V. The main anatomomorphologic signs of the difference of teeth of two generations in dogs / V. V. Frolov, Yu. V. Bochkareva, A. V. Egunova, M. E. Kopchekchi // Agrarny nauchnyi zhurnal. - №11. - 2018. - P. 36-39.
10. Brooke, A. Nemec. Veterinary Periodontology / Brooke A. Nemec. - WileyBlackwell, 2013 – 358 p.
11. Nanci, A. Ten Cates Oral Histology / A. Nanci - Elsevier, 2018 – 824 p.
12. Simon, Hillson. Teeth – 2-d ed. / Simon Hillson – UK: Cambridge university press, 2005. – 373 p.
Review
For citations:
Frolov V.V., Egunova A.V., Ivantsov V.A. Micromorphological features of the structure of the tooth pulp chamber wall in dogs. International Journal of Veterinary Medicine. 2025;(1):222-227. (In Russ.) https://doi.org/10.52419/issn2072-2419.2025.1.222