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Effect Of Bleaching On The Staining Susceptibility Of Enamel And Composite Resin (An In Vitro Study), Neama Ziada, Mohamed Al Yasaky, Doaa Elsharkawy

Al-Azhar Journal of Dentistry

Purpose: This study was aimed to asses the bleaching agent effect on the staining ability of enamel and composite resin. Methods: The overall number of samples was sixty; thirty enamel and thirty resin composite discs with thickness of 2 mm and lo mm were preformed from resin composite material (filtek Z25o), Each group of 30 specimens (enamel and composite) was divided into 2 groups according to the bleaching procedures, where the first group consisted of l0 specimens (n=l0) and was given symbol (Bl) which received no bleaching agent control group (stored in artificial saliva). The second group was given symbol …