Why do dentists stab your gums and then tell you you dont floss enough?

Question

I’ve always wondered what the purpose is, also are they actually stabbing your gums or just near enough to make them sensitive? There has to be a more complex medical reason then just telling people they need to floss

In: Biology

Answer 1

I had a dentist push so hard on a tooth trying to find a cavity that I almost fell out of chair. After digging and digging and pushing he finally admitted no cavity.