Mechanical properties of composite material modified with amorphous calcium phosphate

• Autorzy: Drzewiecka K. , Kleczewska J. , Krasowski M. , Sokołowski J. , Łapińska B.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The purpose of the study was to evaluate mechanical and physical properties of composite materials modified with amorphous calcium phosphate (ACP). Design/methodology/approach: The study used two flowable composite materials: an experimental composite material based on dimetacrylic resin filled with colloidal silica (ECM) and commercially available composite material (SDR/Dentsply). Materials were modified with the addition of ACP as a powder. Three testing groups were created, depending on the amount of ACP – 0.12 g, 0.24 g and 0.36 g – added to 2 g of the basic composite. The composite without ACP was the control group. Diametral Tensile Strength (DTS) was evaluated using Zwick-Roell Z020. Vickers hardness test (HV1/10) was performed using the HV1/10 method in the ZHVμ (Zwick-Roell) hardness tester. The measurements of shrinkage stress that arose during polymerisation of the tested materials were conducted with the use of the FL200/Gunt circular polariscope. Findings: In both composites modified with ACP the decrease of DTS was observed. ACP addition to experimental composite increased its hardness. Addition of 5.67 wt% of ACP to SDR resulted in significant decrease of its hardness. For both tested materials, the highest shrinkage stress was observed in composites modified with 5.67 wt% ACP addition. The lowest shrinkage stress was observed in ECM modified with 15.25 wt% ACP and SDR composite containing 10.72 wt% ACP. Research limitations/implications: Additional investigations are needed to define the exact influence of addition ACP to composite materials on their mechanical and physiochemical properties. Originality/value: In order to improve biological behaviour of composite materials it is possible to modify those materials with the addition of remineralising agents like ACP.

Słowa kluczowe

EN

composites; mechanical properties; physical features of biomaterials and dental materials

PL

kompozyty; właściwości mechaniczne; właściwości fizyczne biomateriałów własciwosci fizyczne materiałów stomatologicznych

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2016
• Tom: Vol. 74, nr 1
• Strony: 22--28
• Opis fizyczny: Bibliogr. 28 poz., tab.

Twórcy

autor

Drzewiecka K.

• Department of General Dentistry, Medical University of Łódź, ul. Pomorska 251, 92-213 Łódź, Poland

autor

Kleczewska J.

• Laboratory of Material Testing, Medical University of Łódź, ul. Pomorska 251, 92-213 Łódź, Poland

autor

Krasowski M.

• Laboratory of Material Testing, Medical University of Łódź, ul. Pomorska 251, 92-213 Łódź, Poland

autor

Sokołowski J.

• Department of General Dentistry, Medical University of Łódź, ul. Pomorska 251, 92-213 Łódź, Poland,

autor

Łapińska B.

• Department of General Dentistry, Medical University of Łódź, ul. Pomorska 251, 92-213 Łódź, Poland,

Bibliografia

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