I believe the Romans used to "pin fire" teeth, ie burn out the root through the cavity with a red hot needle.There was a holiday in the sun type programme, in some place they paint cocks on the houses.
It showed a woman having a toothache cured, they stuffed her mouth with wet yak dung and poked
a red hot poker into the tooth. She smiled afterwards, toothache gone!
Or was that a telly program I dreamed;-)