Letters from Theo van Gogh to his Family (1885 - 1887) ... other people even more than it does me. He has undergone an
important operation in his mouth, for he had lost almost all
his teeth
Letter from Vincent van Gogh to Theo van Gogh (1 May 1888) ... is mostly in moments of physical weakness,
and last week I had such a fierce toothache
that much against my will I had to waste time.
However, I have just sent you a roll of small pen-and-ink drawings, a dozen I think. By which
you will see...