Abstract
Restorative filling materials used for dental caries prevention and treatment consist of various components including monomers or oligomers, which play a significant role in forming the main structure of these materials, as well as in characterising their physical, mechanical and chemical properties. The necessity for the development and improvement of structural characteristics of polymeric dental filling materials intended for caries prevention and their life duration increase served as the initiating factor of our research. According to the research purpose and challenges, we studied the changes in the physical, mechanical and chemical properties of composite filling materials with and without electromagnetic field influence. The investigations in vivo include the study of microstructural features of polymeric filling materials by scanning electron microscopy (SEM) and the investigations in vitro include the study of sealed and extracted human teeth chips by using X-ray spectral analysis. We also evaluated the changes in the strength characteristics of dental filling materials with and without electromagnetic field influence. The analysis of the obtained data indicates the presence of structural changes in polymeric dental filling materials, including the material microstructure condensation confirmed by the SEM results, an increase in the strength and adhesion characteristics and certain regularities of the chemical elemental composition concentration change in the area of hard tooth tissue and dental filling material. These scientific data will provide tooth caries prevention and promote the increase of treatment quality.
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Acknowledgements
The authors thank the subjects who participated and other site staff involved in the conduct of this study. According to the purpose and objectives of the study, the VSMU Dentistry Department based at the clinical site of the VSMU Dental Clinic in cooperation with Voronezh State University and Voronezh State Forestry University named after G.F. Morozov.
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NSM substantially contributed to the conception and design, acquisition of the data, and analysis and interpretation of the data, carried out the scientific studies, participated in the sequence alignment, conceived the study, participated in its design and coordination and drafted the manuscript. AAK participated in its design and coordination and drafted the manuscript. All authors read and approved the final manuscript.
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Moiseeva, N.S., Kunin, A.A. Clinical and laboratory evaluation of microstructural changes in the physical, mechanical and chemical properties of dental filling materials under the influence of an electromagnetic field. EPMA Journal 9, 47–58 (2018). https://doi.org/10.1007/s13167-018-0126-x
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DOI: https://doi.org/10.1007/s13167-018-0126-x