There was (and still is) absolutely no pain, so at first I assumed that I must have had a big piece of food stuck back there so I reached back and felt at the tooth with my fingernail
, which caught on the gap and took ANOTHER piece off
, only this time on the left tooth.
All in all, 3 of my incisors now have "chunks" missing at the base. But under the chunks, there is still a tooth attached to the gumline. It's as though the tooth is very brittle and the outside of it just flaked off.