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. 2012 Jul-Aug;20(4):435–443. doi: 10.1590/S1678-77572012000400008

Figure 3.

Figure 3

Clinical bleaching procedure in groups 1 and 2: A- bleaching gel application in the right side arcs; B- activation of the gel with hibrid light (HL) in the right side arcs and protection of the left side arcs