question: My five year-old son s upper left farthest back molar seems to have cracked off. In the middle dangling is a bit of white tissue that s red where it s attached to the molar. He has excellent dental hygiene - flosses at night and brushes twice a day. He was flossing tonight and he thought it was a piece of corn on the cob. I took a look at it and it did not look normal. He went to the dentist in June and this had not occurred. I think it occurred some time today. He says it doesn t hurt. He flossed last night and it was uneventful. We are definitely taking him to the dentist tomorrow but I am freaking out. What do you think happened?