Cheap and Invaluable Dentifrice

Dissolve 2 ounces of borax in three pints of water; before quite cold, add thereto one tea-spoonful of tincture of myrrh, and one tablespoonful of spirits of camphor; bottle the mixture for use. One wine-glass of the solution, added to half a pint of tepid water, is sufficient for each application. This solution, applied daily, preserves and beautifies the teeth, extirpates all tartarous adhesion, produces a pearl-like whiteness, arrests decay, and induces a healthy action in the gums.

Source: The Ladies’ Book of Etiquette, and Manual of Politeness, Florence Hartley