Toothpaste, its first time in ancient Egypt by toothpaste made from a mix of natural ingredients, including salt and cayenne pepper mint leaf Thai flowers. In the Roman era have invented their own toothpaste formulas. The Romans believed that the ammonia in the urine may help to clean teeth. Later, during the 18th century as toothpaste American cuisine that uses burnt bread. The city's 19-century category toothpaste powder, until the current era.