CINCINNATI – Procter & Gamble is making major changes to several of its products after a dental hygienist said she noticed something strange in her patients’ mouths.

Trish Walraven said she spotted little blue specks in the gum lines of her patients a few years ago. For a while, she said she had no idea what she was dealing with.

“We thought it was a cleaning product or something people were chewing,” she said.

Walraven said she started asking around, and she soon found other hygienists that were seeing it too.

It took several weeks, but Walraven said she finally figured out what it was: polyethylene.

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