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Table 1 Division of the experimental groups

From: The effect of green tea on the shear strength of brackets after home whitening treatment

Group Whitening Antioxidant
Group 1 No No
Group 2 10 % Carbamide peroxide No
Group 3 No 10 % Sodium ascorbate
Group 4 No 10 % Green tea
Group 5 10 % Carbamide peroxide 10 % Sodium ascorbate
Group 6 10 % Carbamide peroxide 10 % Green tea
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