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A Journal on Dentistry and Maxillofacial Surgery


Official Journal of the Italian Society of Odontostomatology and Maxillofacial Surgery
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Minerva Stomatologica 2014 January-February;63(1-2):1-6

language: English

Comparison of hardness of three temporary filling materials cured by two light-curing devices

Bodrumlu E. 1, Koçak M. M. 2, Hazar Bodrumlu E. 3, Ozcan S. 4, Koçak S. 5

1 Department of Endodontics, Faculty of Dentistry University of Ondokuz Mayis, Samsun, Turkey;
2 Department of Endodontics, Faculty of Dentistry Bulent Ecevit University, Zonguldak, Turkey;
3 Pediatric Dentistry Department Faculty of Dentistry University of Ondokuz Mayis, Samsun, Turkey;
4 Department of Operative Dentistry Faculty of Dentistry, University of Gazi Ankara, Turkey;
5 Department of Endodontics, Faculty of Dentistry University of Karaelmas, Zonguldak, Turkey


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Aim: Polymerization ability of light-curing devices can affect the light-cured material hardness. The purpose of the present study was to evaluate and compare the hardness of three temporary filling materials that had been light-cured by either a light emitting diode (LED) or a halogen light-curing unit.
Methods: The temporary filling materials, First Fill, Voco Clip and Bioplic, were placed in wells in a Teflon plate. The 24 specimens of each material were divided into two groups (N.=12/group) for photo-activation by either of the two light-curing units. The LED or halogen device was applied for 40s to the top surface of each specimen. A Knoop hardness test was performed on the top and bottom surface of each specimen, with five measurements per specimen.
Results: The highest hardness values for both the LED and halogen treated groups were observed for First Fill and the lowest values were for Voco Clip in top and bottom surfaces. The hardness obtained for the three materials with the halogen unit were significantly higher than the values obtained with the LED unit in both surfaces (P<0.05).
Conclusion: First Fill light-cured temporary material exhibited the highest hardness values on the top and bottom surfaces than Voco Clip and Bioplic temporary materials. The hardness of light-cured temporary filling materials can be affected by the type of light-curing unit.

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bodrumlu@omu.edu.tr