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Hosseini MH, Hassanpour M, Etemadi A, et al. Amalgam Surface Treatment by Different Output Powers of Er:YAG Laser:SEM Evaluation. J Lasers Med Sci. 2015;6(4):171-3doi: 10.15171/jlms.2015.14.
Hosseini, M. H., Hassanpour, M., Etemadi, A., Ranjbar Omrani, L., Darvishpour, H., & Chiniforush, N. (2015). Amalgam Surface Treatment by Different Output Powers of Er:YAG Laser:SEM Evaluation. Journal of lasers in medical sciences, 6(4), 171-3. https://doi.org/10.15171/jlms.2015.14
Hosseini, Mohammad Hashem, et al. "Amalgam Surface Treatment by Different Output Powers of Er:YAG Laser:SEM Evaluation." Journal of lasers in medical sciences vol. 6,4 (2015): 171-3. doi: https://doi.org/10.15171/jlms.2015.14
Hosseini MH, Hassanpour M, Etemadi A, Ranjbar Omrani L, Darvishpour H, Chiniforush N. Amalgam Surface Treatment by Different Output Powers of Er:YAG Laser:SEM Evaluation. J Lasers Med Sci. 2015;6(4):171-3. doi: 10.15171/jlms.2015.14. Epub 2015 Oct 27. PMID: 26705463; PMCID: PMC4688385.
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J Lasers Med Sci. 2015;6(4):171-3. doi: 10.15171/jlms.2015.14. Epub 2015 Oct 27.

Amalgam Surface Treatment by Different Output Powers of Er:YAG Laser:SEM Evaluation.

Journal of lasers in medical sciences

Mohammad Hashem Hosseini, Mehdi Hassanpour, Ardavan Etemadi, Ladan Ranjbar Omrani, Hojat Darvishpour, Nasim Chiniforush

Affiliations

  1. Department of Orthodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran.
  2. Department of Orthodontics, School of Dentistry, Qom University of Medical Sciences, Qom, Iran.
  3. Laser Research Center of Dentistry, Dental Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
  4. Department of restorative, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran.

PMID: 26705463 PMCID: PMC4688385 DOI: 10.15171/jlms.2015.14

Abstract

INTRODUCTION: The purpose of this study was to evaluate amalgam surfaces treated by different output powers of erbium-doped yttrium aluminum garnet (Er:YAG) laser by scanning electron microscope (SEM).

METHODS: Twenty-one amalgam blocks (8 mm × 8 mm, 3 mm thickness) were prepared by condensing silver amalgam (into putty impression material. After keeping them for 24 hours in distilled water, they were divided into 7 groups as follow: G1: Er:YAG laser (1 W, 50 mJ), G2: Er:YAG laser (2 W, 100 mJ), G3: Er:YAG laser (3 W, 150 mJ), G4: Sandblast, G5: Sandblast + Er:YAG laser (1 W, 50 mJ), G6: Sandblast +Er:YAG laser (2 W, 100 mJ) and G7: Sandblast +Er:YAG laser (3 W, 150 mJ). Then after preparation of all samples, they were examined by SEM.

RESULTS: The SEM results of amalgam surfaces treated by different output powers of Er:YAG laser showed some pitting areas with non-homogenous irregularities Conclusion: It seems that the application of sandblasting accompanied by Er:YAG laser irradiation can provide proper surface for bonding of orthodontic brackets.

Keywords: Amalgam; Er:YAG lasers; Orthodontic bracket

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