By Jonathan Stempel

(Reuters) -Procter & Gamble must face a lawsuit alleging that its packaging for Kid’s Crest suggests that children can use more of the toothpaste than is safe.

In a decision on Friday, U.S. District Judge Jorge Alonso said parents can try to prove Procter & Gamble violated various state consumer protection laws and owes damages for depicting a full strip of toothpaste atop a toothbrush, with a seal of approval from the American Dental Association.

“The fact that swallowing fluoride poses health risks to children is an essential element of the story plaintiffs are telling; it is the reason for the recommendation that they use only a smear or dab,” the Chicago-based judge wrote.

Procter & Gamble and its lawyers did not immediately respond to requests for comment on Mo

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