Per the for label for Sodium Fluoride chewable tablets.
A treatment dose of Sodium Fluoride Chewable Tablets contains 0.25, 0.5 or 1.0 mg fluoride
A standard OTC toothpaste, in this case Crest Pro-Health, contains 0.454% fluoride. For you to get 1mg of fluoride from this toothpaste, you would have to swallow just over 220g. One tube is 130g.
If we assume ...