Well, after my husband died, I met a man who was very passionate, and of course, we kissed, a lot.
I have a partial plate and was very conscious of the fact.
I felt incredibly nervous the first time we kissed but I don't think he noticed.
A little while into the relationship, he mentioned he had a dental checkup and (all his own teeth) said, "I can't stand false teeth" well, that really shocked my confidence and I never felt the same about him after that, although we did continue to see each other for a while.
But I see no reason why you should even mention this to your date, Denil. It's not something you bring up on a first date.
Just go with the flow and suss him out.
He probably won't want a full blown snog right away I would imagine.