Baking soda (sodium bicarbonate) has had a long history of use as an oral-hygiene aid. The uses for these oral-hygiene aids include fighting plaque, gingivitis reduction, stain-removal, and odor-reducing efficacy
A) First statement is true, second statement is false.
B) First statement is false, second statement is true.
C) Both statements are true.
D) Both statements are false.
C
Explanation: C) Sodium bicarbonate has had a long history of use as an oral-hygiene aid, which includes fighting plaque, gingivitis reduction, stain-removal, and odor-reducing efficacy.
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