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mikael mikael
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10 years ago
Which of the following concentrations of sodium fluoride is found in most dentifrices?
A) 0.12
B) 0.15
C) 0.20
D) 0.24
E) 0.30
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nite_n_daynite_n_day
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10 years ago
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mikael Author
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10 years ago
Thanks a lot.
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