When I massaged the gum with my finger, I got a really foul taste from the
gum. So I went to the dentist. He examined the
gum and the crown/
tooth joint and didn't see anything that looked bad. When he massaged the gum, he didn't see anything, but I still got a slightly foul taste (but not nearly as strong). He then did a percussion test, tapping firmly on all surfaces of the tooth, and I had no pain.