On my first ever punt the prossie bit my cock during covered oral, not hard, but enough to feel it. I liked it & it's something I will ask for on occasion when the mood takes me in both my punting & private relationships.
When I first saw this thread I thought it was going to be about teeth in general. Mine aren't brilliant, but they aren't bad, good condition & never had a filling. I'm picky when it comes to teeth, especially in my private relationships. Was seeing a girl a year or so ago, decent body, nice personality, pretty... But she had horrible teeth due to a lack of calcium in the womb, horrible stubby pegs, so after a couple of months I had to finish it as they grated on me. That plus she was uber vanilla in the sack & wouldn't suck my cock.
Prossies teeth bother me less, as I'm paying them for a service, however a really bad set of fans hers would probably rule out a second visit.