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Materiale Plastice
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https://doi.org/10.37358/Mat.Plast.1964

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ISSN Print 0025-5289
ISSN Online 2668-8220
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Materiale Plastice (Mater. Plast.), Year 2018, Volume 55, Issue 4, 584-589

https://doi.org/10.37358/MP.18.4.5079

Simona Stoleriu, Gianina Iovan, Irina Nica, Galina Pancu, Andrei Victor Sandu, Sorin Andrian

The Effect of Heating on Surface Microhardness of Resin-based Materials for Direct Restoration


Abstract:
The aim of this study was to evaluate and to compare the surface hardness of three types of resin-based materials used for direct restoration after heating at different temperatures. A giomer (Beautifil II, Shofu Dental), a compomer (Dyract eXtra, Dentsply Sirona) and a hybrid composite resin (Gaenial Posterior, GC Corporation) were selected for this study. Twenty disk-shaped specimens of each material were heated at room temperature (21°C), at 37°C, at 50°C and at 60°C. Vickers microhardness test was performed on top and bottom surfaces using digital microhardness tester (Micro-Vickers Hardness System CV- 400DMTM, CV Instruments Namicon). The top and bottom surfaces VHN was calculated as a mean value of five determinations. Also, the microhardness ratio was calculated by dividing the top mean VHN value by bottom mean VHN value. Increased mean hardness values were recorded after heating, irrespective of resin-based tested materials. The highest hardness values were recorded after heating all three materials at 60°C, followed by the hardness recorded at 50°C, 37°C and 21°C. For top surfaces, the lowest hardness value was recorded in Dyract eXtra group when samples were warmed at room temperature and the highest hardness value was obtained in Beautifil II group when samples where heated at 60°C. For the bottom surfaces, Dyract eXtra specimens heated at 21°C presented the lowest hardness values and Beautifil II samples heated at 60°C presented the highest hardness values. On top and on bottom surfaces Dyract eXtra showed the lowest hardness values, followed by G-aenial Posterior and Beautifil II, irrespective the heating temperature.


Keywords:
Vickers hardness; compomer; giomer; composite resin

Issue: 2018 Volume 55, Issue 4
Pages: 584-589
Publication date: 2018/12/30
https://doi.org/10.37358/MP.18.4.5079
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Creative Commons License
This article is published under the Creative Commons Attribution 4.0 International License
Citation Styles
Cite this article as:
STOLERIU, S., IOVAN, G., NICA, I., PANCU, G., SANDU, A.V., ANDRIAN, S., The Effect of Heating on Surface Microhardness of Resin-based Materials for Direct Restoration, Mater. Plast., 55(4), 2018, 584-589.

Vancouver
Stoleriu S, Iovan G, Nica I, Pancu G, Sandu AV, Andrian S. The Effect of Heating on Surface Microhardness of Resin-based Materials for Direct Restoration. Mater. Plast.[internet]. 2018 Dec;55(4):584-589. Available from: https://doi.org/10.37358/MP.18.4.5079


APA 6th edition
Stoleriu, S., Iovan, G., Nica, I., Pancu, G., Sandu, A.V. & Andrian, S. (2018). The Effect of Heating on Surface Microhardness of Resin-based Materials for Direct Restoration. Materiale Plastice, 55(4), 584-589. https://doi.org/10.37358/MP.18.4.5079


Harvard
Stoleriu, S., Iovan, G., Nica, I., Pancu, G., Sandu, A.V., Andrian, S. (2018). 'The Effect of Heating on Surface Microhardness of Resin-based Materials for Direct Restoration', Materiale Plastice, 55(4), pp. 584-589. https://doi.org/10.37358/MP.18.4.5079


IEEE
S. Stoleriu, G. Iovan, I. Nica, G. Pancu, A.V. Sandu, S. Andrian, "The Effect of Heating on Surface Microhardness of Resin-based Materials for Direct Restoration". Materiale Plastice, vol. 55, no. 4, pp. 584-589, 2018. [online]. https://doi.org/10.37358/MP.18.4.5079


Text
Simona Stoleriu, Gianina Iovan, Irina Nica, Galina Pancu, Andrei Victor Sandu, Sorin Andrian,
The Effect of Heating on Surface Microhardness of Resin-based Materials for Direct Restoration,
Materiale Plastice,
Volume 55, Issue 4,
2018,
Pages 584-589,
ISSN 2668-8220,
https://doi.org/10.37358/MP.18.4.5079.
(https://revmaterialeplastice.ro/Articlegs.asp?ID=5079)
Keywords: Vickers hardness; compomer; giomer; composite resin


RIS
TY - JOUR
T1 - The Effect of Heating on Surface Microhardness of Resin-based Materials for Direct Restoration
A1 - Stoleriu, Simona
A2 - Iovan, Gianina
A3 - Nica, Irina
A4 - Pancu, Galina
A5 - Sandu, Andrei Victor
A6 - Andrian, Sorin
JF - Materiale Plastice
JO - Mater. Plast.
PB - Materiale Plastice SRL
SN - 2668-8220
Y1 - 2018
VL - 55
IS - 4
SP - 584
EP - 589
UR - https://doi.org/10.37358/MP.18.4.5079
KW - Vickers hardness
KW - compomer
KW - giomer
KW - composite resin
ER -


BibTex
@article{MatPlast2018P584,
author = {Stoleriu Simona and Iovan Gianina and Nica Irina and Pancu Galina and Sandu Andrei Victor and Andrian Sorin},
title = {The Effect of Heating on Surface Microhardness of Resin-based Materials for Direct Restoration},
journal = {Materiale Plastice},
volume = {55},
number = {4},
pages = {584-589},
year = {2018},
issn = {2668-8220},
doi = {https://doi.org/10.37358/MP.18.4.5079},
url = {https://revmaterialeplastice.ro/Articlegs.asp?ID=5079}
}
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