Abstract: The effects of tooth brushing could affect the long-term esthetic outcome of composite restorations. This study evaluated the effect of two different emission spectrum light-curing units on the surface roughness. roughness profile. topography and microhardness of bulk-fill composites after in vitro toothbrushing. https://safeersappliancers.shop/product-category/hoover-axi-combined-hmnb6182dx5k-60cm-no-frost-fridge-freezer/