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Dental Hyper Pigmented Disorders 6b2217b5

Which is the most effective topically applied bleaching agent?

A
Tretinoin
B
Hydroquinone
C
Salicylic acid
D
Toc
High-Yield Explanation
Hydroquinone is most effective topically applied bleaching agent. It bleach freckles and lentigens but not cafe-au-lait spots or pigmented nevi.

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