In Vitro Analysis of AHPlus and MM-Seal by ESR and Thermoanalytical Methods

• Authors: Y. Ceylan , A. Usta , K. Usta , F. Kont Cobankara , C. Yildirim , M. Birey
• Languages of publication: EN

Abstracts

EN

The free radicals and their concentration in resin materials may impact biocompatibility and polymerization properties of dental materials. The aim of this study was to determine whether there are free radicals and to obtain useful information about thermal stability of materials using electron spin resonance (ESR) spectroscopy, TGA (Thermogravimetry Analysis) and DTA (Differential Thermal Analysis) methods. Epoxy resin-based sealers AHPlus and MM-Seal samples, freshly mixed and set, were prepared to be analysed with ESR and thermal methods. The free radicals were found in dental materials. As radical concentration in AHPlus have changed very slowly, the concentration in MM-Seal have decreased dramatically. Also, MM-Seal was found to decompose in three steps with the increasing temperature, while decomposition of the AHPlus occurred in two steps.

Keywords

EN

87.66.Uv; 36.20.Kd; 39.30.+w; 33.35.+r

Discipline

• 36.20.Kd: Electronic structure and spectra
• 33.35.+r: Electron resonance and relaxation(see also 76.30.-v Electron paramagnetic resonance and relaxation in condensed matter)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 128
• Issue: 2B
• Pages: B-479-B-482

Dates

published

2015-8

Contributors

author

Y. Ceylan

• Selcuk University, Faculty of Science, Department of Physics, Konya, Turkey

author

A. Usta

• Alanya Alaaddin Keykubat University, Alanya Engineering Faculty, Alanya, Antalya, Turkey

author

K. Usta

• Alanya Alaaddin Keykubat University, Alanya Engineering Faculty, Alanya, Antalya, Turkey

author

F. Kont Cobankara

• Department of Endodontics, Faculty of Dentistry, University of Selcuk, Konya, Turkey

author

C. Yildirim

• Department of Endodontics, Faculty of Dentistry, University of Gaziantep, Gaziantep, Turkey

author

M. Birey

• Department of Physics, Faculty of Science University of Ankara, Ankara, Turkey

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Identifiers

DOI

10.12693/APhysPolA.128.B-479