Translating to "the last day of the month" in Japanese, Misoka is a revolutionary toothbrush brand that has fully removed the need for toothpaste when brushing. Its collection of brushes, designed by Kosho Ueshima in collaboration with dentists and Osaka technology company Yumeshokunin,
feature bristles coated in nano-sized mineral ions measuring one billionth of a metre in diameter, allowing for water-only cleaning and a deep, thorough cleanse. Because of this, all brushes are built to last for approximately month, hence the brand name.