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. 2022 Dec 30;16(1):348.
doi: 10.3390/ma16010348.

Tests of Dental Properties of Composite Materials Containing Nanohybrid Filler

Jarosław Zubrzycki  1 , Tomasz Klepka  2 , Magdalena Marchewka  1 , Robert Zubrzycki  3
Affiliations

Tests of Dental Properties of Composite Materials Containing Nanohybrid Filler

Jarosław Zubrzycki et al. Materials (Basel). .

Abstract

Complex composite materials are used in many areas of dentistry. Initially, chemically hardened materials were also used, and in this group nanohybrid composites are highly valued. They are often used today, mainly for the direct reconstruction of damaged hard tooth tissue materials for rebuilding damaged tissues using indirect adhesive techniques. The research was conducted to determine the mechanical properties of materials with nanofillers. The article focuses on methods of important test methods for dental prosthetics: resilience, abrasion, wear test, impact strength, hardness, SEM, and chemical analysis. As part of this work, five different series of hybrid composites with nano-fillers were tested. The mechanical properties of composites, such as compressive strength, microhardness, flexural strength, and modulus of elasticity, depend mainly on the type, particle size, and amount of filler introduced. The obtained test results showed that the type and amount of nanofiller have a significant influence on the mechanical and tribological properties. The introduction of nanofillers allowed us to obtain higher mechanical properties compared to classic materials discussed by other researchers. The study observed a change in vibrations in the IR spectrum, which allowed a comparison of the organic structures of the studied preparations.

Keywords: IR spectrum; composite materials; dental implants; nanohybrid filler; tribotester.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Flowchart of process flow.
Figure 2
Figure 2
Shape and size of sample.
Figure 3
Figure 3
Stand for friction wear tests in laboratory conditions.
Figure 4
Figure 4
Change of the coefficient of friction for all samples.
Figure 5
Figure 5
Wear of samples.
Figure 6
Figure 6
Mass wear of samples.
Figure 7
Figure 7
Microscopic examinations.
Figure 7
Figure 7
Microscopic examinations.
Figure 8
Figure 8
As a result of the impact tests, it was found that sample no. 5 had the highest fracture resistance of 0.5512 [J/cm2]. Sample no. 3 was characterized as the lowest impact strength, equal to 0.0584 [J/cm2].
Figure 9
Figure 9
Medium hardness of samples.
Figure 10
Figure 10
Cumulative IR spectra.
Figure 11
Figure 11
IR spectrum for the sample 1.
Figure 12
Figure 12
IR spectrum for sample 4.
See this image and copyright information in PMC

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