Introduction and the History
China, Egypt and India
used toothpaste long ago as 300/500 BC. They used abrasives, which contains
crushed bones ,crushed egg, and oyster shells in toothpaste. Later toothpowders
were used in toothpaste. Toothpowder contains powdered charcoal, powdered
bark, and flavoring agents. By the early 1900's fluoride was added to toothpaste.
By the 1980's calcium and triclosan was put in toothpaste. Fluoride and
calcium were the most important ingredients in toothpaste. Fluoride and
calcium help protect and strengthen teeth.