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 Indian J Med Microbiol  
 

Figure 1: Scanning electron microscopy and three-dimensional atomic force microscopy images of the Empress Direct composite resin: (a) Acetone gel group at 7 days; (b) acetone gel group at 6 months; (c) acetone liquid group at 7 days; (d) acetone liquid group at 6 months. The surface exhibited exposed filler particles from the action of solvent even after the aging process. Note the presence of greater porosity at 6 months compared with 7 days

Figure 1: Scanning electron microscopy and three-dimensional atomic force microscopy images of the Empress Direct composite resin: (a) Acetone gel group at 7 days; (b) acetone gel group at 6 months; (c) acetone liquid group at 7 days; (d) acetone liquid group at 6 months. The surface exhibited exposed filler particles from the action of solvent even after the aging process. Note the presence of greater porosity at 6 months compared with 7 days