Toothache may be cured by conjurers, who apply the finger to the aching tooth, while muttering a charm, or tie a number of knots in a fishing line.
Newfoundland.

Toothache may be cured by conjurers, who apply the finger to the aching tooth, while muttering a charm, or tie a number of knots in a fishing line.
Source: Current Superstitions (1896), entry 831.
Fanny D. Bergen, editor.
Modern normalized navigation; the historical attribution above remains unchanged.