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Effect of Laser Treatment on Surface Morphology of Indirect Composite Resin: Scanning Electron Microscope (SEM) Evaluation

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Author(s): Mansore Mirzaie | Nazanin Zeinab Garshasbzadeh | Esmaeil Yassini | Sima Shahabi | Nasim Chiniforush

Journal: Journal of Lasers in Medical Sciences
ISSN 2008-9783

Volume: 4;
Issue: 2;
Start page: 92;
Date: 2013;
Original page

Keywords: Er:YAG laser | Nd:YAG lasers | CO2 laser

ABSTRACT
Introduction: The aim of this study was to evaluate and compare the Scanning electron microscope (SEM) of indirect composite conditioned by Erbium-Doped Yttrium Aluminum Garnet (Er:YAG) laser, Neodymium-Doped Yttrium Aluminium Garnet (Nd:YAG) laserand Carbon Dioxide (CO2) laser.Methods: 18 indirect composite blocks (GC Gradia DA2, Japan) with 15 × 10 × 10 mm dimensions were made. The bonding surface of these blocks were polished, then the samples were divided into six groups as follow: Er:YAG laser with output power of 0.5 W and frequency of 10 Hz, Nd:YAG laser with output power of 0.25, 0.5 W and frequency of 10 Hz, CO2 laser with output power of 0.5 W and frequency of 10 Hz and 5 Hz, and no treatment. Then, the surfaces were evaluated by SEM.Results: Irregularities were observed in Er:YAG laser samples compared to control group that produced suitable retention for adhesion of cements. Nd:YAG and CO2 lasers showed melting areas.Conclusion: Among different lasers, Er:YAG laser can be used as an alternative technique for surface treatment of indirect composites.
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