The Japan Aerospace Exploration Agency (JAXA ... Teshima created the safe-to-swallow toothpaste with the assistance of such parties as Kyushu University. Teshima then found his invention could ...

TOKYO -- A man from the Japanese capital's Koto Ward was arrested on suspicion of breaking into the home of a woman he was once dating and attempting to murder her by poisoning her toothpaste and ...

A small 2019 study in Japan found a toothpaste containing calcium carbonate removed greater amounts of plaque than toothpaste without it. It also found calcium carbonate did not damage gum tissue.