Toothpaste

摘要

Toothpaste containing calcium carbonate as the principal abrasive and a lesser amount of sodium bicarbonate as an additional abrasive. The principal abrasive of the toothpaste may also be comprised of a mixture of abrasives such as chalk, silica, alumina, zirconium silicate or sodium aluminosilicate in combination with the minor amount of sodium bicarbonate. The latter may be included in amounts up to about 25%, while the former may be included in amounts up to about 60%.