To Clean Teeth

Pulverized charcoal mixed with honey, is very good to cleanse teeth, and make them white. A little Peruvian bark put in a phial with lime water is excellent to use occasionally by those that have offensive teeth; and tincture of myrrh mixed with a little water, may be used with advantage, to harden the gums. A little Peruvian bark put in the teeth just before going to bed, and washed out in the morning, is an excellent preservative of teeth. It is very important for parents to insist on children cleaning their teeth, at least, it is well for them to begin before they lose their first set, as it makes them last longer, and fixes the habit, which is of great importance.

Source: Domestic Cookery, Useful Receipts, and Hints to Young Housekeepers, Elizabeth E. Lea