Dentist № 4 (47) – 2022, pp. 26-37                                                                                                             SCIENTIFIC PUBLICATION

Microscopic study of the structure of dental splinting construction

N.V. Novaka, V.S. Starovoytovab

aMD, PhD, DMSci, Professor, Belorussian Medical Academy of Postgraduate Education, Minsk, Belarus
bBelorussian Medical Academy of Postgraduate Education, Minsk, Belarus

https://doi.org/10.32993/dentist.2022.4(47).1

ABSTRACT
The aggregate properties of the adhesive splinting construction are determined by the intrinsic properties of its constituent fibers, the architecture of the fibers, and the interaction with the polymer matrix of the composite material. The geometry and architecture of the reinforcing fibers, including orientation and arrangement, and their volume fraction determine the strength properties of the splint.
The aim of the study. To study the microscopic structure of splinting construction with different chemical compositions of reinforcing tapes.
Objects and methods. 10 groups of 10 specimens of splinting constructions, with different chemical composition of reinforcing tapes, 8 of which were made by using tapes based on inorganic matrix, 2 – based on organic, respectively.
Results and discussion. Microscopic examination of the splinting samples showed good integration of the composite polymer matrix into the structure of the tapes in the samples using inorganic matrix-based tapes. Peripheral layer delamination was not detected, pores in the splint thickness were absent or were single, which may be due to silanization of glass fibers incorporated into the thermoplastic polymer and light-curing composite matrix.
Conclusion. Inorganic-based splinting tapes with parallel glass fibers, factory-impregnated with resin, have shown advantages over woven, braided, and non-impregnated tapes.

Keywords: splinting construction, microscopic examination, fiberglass, polyethylene

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Correspondence to:  Е-mail: zubnajafeja@yandex.by