Influence of dental materials on hardness and Young’s modulus of the surface layers of tooth enamel formed as a result of friction

• Autorzy: Wojda Sylwia , Sajewicz Eugeniusz

Identyfikatory

DOI

10.5277/ABB-01222-2018-02

• Języki publikacji: EN

Abstrakty

EN

The purpose of this work was to determine the influence of dental materials used as permanent fillings on the mechanical properties of the tooth enamel surface layer subjected to friction with these materials. Methods: Dental composite materials (five types) were differentiated in terms of size and shape of the filler particles and matrix type over the course of tests on the chewing simulator under two different loads set during friction. Next, it was measured values of wear and nanoindentation for the resulting friction rates on the enamel (3 different load ranges). Results: It was found that the enamel’s resistance to tribological wear is significantly higher than that of the tested dental materials. It is also important to note that, depending on the penetration depth of the indenter (depends on the indenter pressure), different hardness values and Young’s modulus of enamel were obtained after friction with different dental materials. This demonstrates the formation of a surface layer with different properties than the native material. Conclusions: Analysis of the obtained results suggests the existence of different tribological wear mechanisms, as evidenced by significant differences in the wear values of dental materials and enamel. The data show that the enamel surface layer modified by the contacting dental material is shaped to a certain depth, and different thickness ranges of the changed layer have different properties.

Słowa kluczowe

EN

enamel; hardness; dental material; wear; nanoindentation; Young's modulus

PL

szkliwo; twardość; materiał stomatologiczny; tarcie; moduł Younga

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Acta of Bioengineering and Biomechanics
• Rocznik: 2019
• Tom: Vol. 21, no. 1
• Strony: 129--139
• Opis fizyczny: Bibliogr. 22 poz., rys., tab., wykr.

Twórcy

autor

Wojda Sylwia

• Białystok University of Technology, Białystok, Poland

autor

Sajewicz Eugeniusz

• Białystok University of Technology, Białystok, Poland

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).