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   Amalgam Surface Treatment by Different Output Powers of Er:YAG Laser:SEM Evaluation  
   
نویسنده Hosseini Hashem Mohammad ,Hassanpour Mehdi ,Etemadi Ardavan ,Omrani Ranjbar Ladan ,Darvishpour Hojat ,Chiniforush Nasim
منبع journal of lasers in medical sciences - 2015 - دوره : 6 - شماره : 4 - صفحه:171 -173
چکیده    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 irregularitiesconclusion: it seems that the application of sandblasting accompanied by er:yag laser irradiation can provide proper surface for bonding of orthodontic brackets.
کلیدواژه Amalgam ,Orthodontic bracket ,Er:YAG lasers
آدرس tehran university of medical sciences tums, Department of Orthodontics, School of Dentistry, ایران, qom university of medical sciences and health services, Department of Orthodontics, School of Dentistry, ایران, tehran university of medical sciences tums, Laser Research Center of Dentistry, Dentistry Research Institute, ایران, tehran university of medical sciences tums, Department of restorative, School of Dentistry, ایران, tehran university of medical sciences tums, Department of Orthodontics, School of Dentistry, ایران, tehran university of medical sciences tums, Laser Research Center of Dentistry, Dentistry Research Institute, ایران
 
     
   
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