Dentist № 4 (55) – 2024, pp. 28-32                                                                                                                        SCIENTIFIC PUBLICATION

Features of chemical and mechanical properties of different groups of permanent teeth

S.S. Shcherbakova, V.A. Kukarekoa, S.P. Rubnikovichb, A.S. Grishchenkovc, Ya.I. Mironovichd, K.A. Rudenyad, E.V. Astrashabe, D.A. Podgayskayaf

aPhD, DMSci, Professor, United Institute of Mechanical Engineering of the National Academy of Sciences of Belarus, Minsk, Belarus
bMD, PhD, DMSci, Professor, Belarusian State Medical University, Minsk, Belarus
cMD, PhD, Associate Professor, Belarusian State Medical University, Minsk, Belarus
dBelarusian State Medical University, Minsk, Belarus
ePhD, Associate Professor, United Institute of Mechanical Engineering of the National Academy of Sciences of Belarus, Minsk, Belarus
fUnited Institute of Mechanical Engineering of the National Academy of Sciences of Belarus, Minsk, Belarus

https://doi.org/10.32993/dentist.2024.4(55).3

ABSTRACT
The choice of construction materials for the restoration of lost dental tissues, taking into account the characteristics of their physical, mechanical and chemical properties, is a pressing issue in dentistry. The results of such a choice form the basis for treatment outcomes, service life of structures, and the effectiveness and quality of care provided..
The aim of the study. To study the structure and mechanical properties of tooth samples of various groups of the human dental system for systematization and planning of further research aimed at forming a unified approach to the choice of material for therapeutic and orthopedic structures.
Objects and methods. The object of the study were natural teeth of various types: incisors, canines, premolars, molars. The following were carried out on special equipment: loading of samples within the framework of compression tests, study of chemical analysis, determination of microhardness.
Results and discussion. The study established that premolars and molars are characterized by an increased content of Ca (73.57-80.82 wt. %) and a decreased content of silicon (0.14-0.20 wt. %), which ensures their high resistance to destruction under compression load. For the first time, the load values were determined during compression tests before the first chips appeared. For incisors, the indicators were – (325–2155 N); canines – (485–755 N); premolars – (376–2220 N); molars – (1340-3525 N).
Conclusion.  Further research aimed at studying the physical, mechanical, chemical and other characteristics of teeth of various group affiliations will allow a more precise approach to the choice of construction material, which will ensure not only the choice of a more predictable method of treatment, but also create conditions for the formation of a personalized approach, as well as schemes for the clinical examination of the population with dental diseases.

Keywords: microhardness of tooth enamel, physical and mechanical properties of teeth, chemical analysis of teeth

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