Yes. I had exactly the same problem! I started chemo in September, and developed toothache not long after. But my Onc told me I had to wait until I'd finished chemo before I could see the dentist, so I was just taking Ibuprofen and Paracetamol every day. I finally got to see my dentist in February and started root canal and kept on with it until 26th July. I thought it was never going to end, so finally I told him to remove the tooth. He did that on 14th August. I thought that would put an end to it. But no. It became infected and also developed an inflammation in the bone. The infection is now finally gone with antibiotics, but there's no treatment for the inflammation - I just have to wait for it to get better, and it is quite painful because it radiates pain into my ear and also to the top teeth above the bottom one that was removed.
I just realised I'm probably not cheering you up at all 😞
Hopefully you won't be as unlucky as me. X