Kids should start using a fluoride toothpaste as soon as their first tooth comes in — these are the best options.

The color of one Kid's Crest product is shown changing to pink from blue as children brush ... Procter & Gamble, Colgate, Perrigo and Sanofi did not immediately respond to requests for comment.

(Reuters) -Procter & Gamble and Colgate-Palmolive are among the defendants in six new lawsuits targeting the sale of toothpaste and ... shown changing to pink from blue as children brush.

[Photo: Timothy Aeppel/Reuters, File Photo] Procter & Gamble and Colgate-Palmolive are among the defendants in six new lawsuits targeting the sale of toothpaste ... to pink from blue as children ...

Crest, Colgate Lawsuits Target Fluoride in Kids' Toothpaste, Mouth Rinse By Jonathan ... Kid's Crest product is shown changing to pink from blue as children brush. Fluoride helps prevent cavities ...