Influence of photopolymerization parameters on the mechanical properties of polymer : ceramic composites applied in the conservative dentistry

• Autorzy: Pieniak D. , Niewczas A. M. , Walczak M. , Zamościńska J.

Identyfikatory

DOI

10.5277/abb140304

• Języki publikacji: EN

Abstrakty

EN

In this paper the results of study of mechanical properties for four commercial polymer-ceramic composites applied in the conservative dentistry are presented, including one new silorane based composite and three standard composites based on methacrylate compounds. Influence of the type of light of diode and halogen polymerization lamps on the microhardness, flexural strength and elasticity were studied. Both exposed and unexposed specimens were taken into account. An exposure time was also differentiated (40 sec and 60 sec). Basic statistics of the analysed material parameters were determined. A post hoc test (Newman-Keuls) was performed in order to evaluate differences between microhardness of the studied materials, as well as Kruskal-Wallis test to evaluate differences in flexural strength and elasticity modulus of the material. It has been indicated that there is an impact of the type of lamp on the microhardness and flexural strength of composites with methacrylate matrix and lack of such impact in case of composites containing siloranes. Additionally, it has been found that an increase of photopolymerization time has a significantly different impact on the mechanical properties depending on the type of irradiated material.

Słowa kluczowe

EN

dental fillings; polymer-ceramic composites; flexural strength; microhardness

PL

kompozyt; materiał stomatologiczny; wypełnienie stomatologiczne; mikrotwardość

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Acta of Bioengineering and Biomechanics
• Rocznik: 2014
• Tom: Vol. 16, no. 3
• Strony: 29--35
• Opis fizyczny: Bibliogr. 29 poz., tab.

Twórcy

autor

Pieniak D.

• Main School of Fire Service, Fire Safety Engineering Faculty, Department of Firefighting Technique, Applied Mechanics Section, 52 Słowackiego Str., 01-629 Warsaw, Poland

autor

Niewczas A. M.

• Department of Conservative Dentistry Medical University of Lublin, 7 Karmelicka Str., 20-081 Lublin, Poland

autor

Walczak M.

• Lublin University of Technology, Department of Materials Science, 36 Nadbystrzycka Street, 20-618 Lublin

autor

Zamościńska J.

• Department of Conservative Dentistry Medical University of Lublin, 7 Karmelicka Str., 20-081 Lublin, Poland

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