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CO2 laser improves 45S5 bioglass interaction with dentin
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نویسنده
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bakry a.s. ,takahashi h. ,otsuki m. ,sadr a. ,yamashita k. ,tagami j.
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منبع
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journal of dental research - 2011 - دوره : 90 - شماره : 2 - صفحه:246 -250
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چکیده
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Bioglass 45s5 is a bioactive glass that can create a layer of calcium-phosphate crystals on mineralized hard tissues. in this study,45s5 bioglass was mixed with phosphoric acid and irradiated with co2 laser and examined as a possible aid in the treatment of dentin hypersensitivity. the dentinal surface modified by the aforementioned technique was chemically and micro-morphologically examined with a field emission scanning electron microscope (fe-sem) equipped with an energy-dispersive x-ray spectroscope (eds),and the crystalline structures of the examined dentinal surfaces were examined by x-ray diffraction (xrd). moreover,the mechanical properties of the newly formed layer were examined by nanoindentation. the results showed that 45s5 bioglass could occlude the dentinal tubule orifices with calcium-phosphate crystals. the application of co2 laser potentially improved the mechanical organization of these crystals. © international & american associations for dental research.
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کلیدواژه
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45S5 bioglass; bioactive glass.; CO2 laser
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آدرس
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department of restorative sciences,graduate school,tokyo medical and dental university,1-5-45,yushima,bunkyo-ku,tokyo 113-8549,japan,conservative dentistry department,faculty of dentistry,alexandria university, Egypt, department of restorative sciences,graduate school,tokyo medical and dental university,1-5-45,yushima,bunkyo-ku,tokyo 113-8549, Japan, department of restorative sciences,graduate school,tokyo medical and dental university,1-5-45,yushima,bunkyo-ku,tokyo 113-8549, Japan, department of cariology and operative dentistry,global center of excellence program,tokyo medical and dental university,tokyo, Japan, institute of biomaterials and bioengineering,tokyo medical and dental university,2-3-10 kanda-surugadai,chiyoda-ku,tokyo 101-0062, Japan, global center of excellence program,ictb,tokyo medical and dental university,tokyo, Japan
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Authors
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