Put a few drops of lemon juice in the water with which the teeth are brushed.

Occasionally brush the teeth with salt.

How To Cleanse A Toothbrush

Wash toothbrushes occasionally in a strong solution of salt and water and dip them, once in a while, in boiling water.

How To Make A Tooth Powder

Mix two ounces of precipitated chalk with two ounces of powdered orris root, then add twelve drops of eucalyptus and mix again.