Materials and Methods: In this test, four kinds of composite (shade A3) were used: Tetric Ceram (TC), Tetric Ceram heavy body (HB), Instent S (IS), Compoglass flow (CF). Each composite consisted of four samples (27×15×1 mm) and coded to four groups: Group 0: Immersed in pure water continuously during all of staining cycles; Group 1: Immersed in Lipton tea; Group 2: Immersed in Green tea; Group 3: Immersed in Trung Nguyen coffee.