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Toothaches up til about a century ago could have almost 50/50 odds on killing a person, there were plenty of widows as well.
For all of human history til antibiotics and antiseptic procedures were invented basically yesterday, a toothache was playing Russian roulette.
Untreated it would kill you, and getting it treated might kill you.
Up til 1908, dental infections had between a 10% and 40% death rate.