Hi all:
So, I've been scrutinizing my gums because I have noticed that in places where I have a lot of crowding, the gum tissue seems a little "flappy."

What I mean is, the gum tissue from the front of my teeth and behind my teeth is connected like normal when the teeth have space between them. In places where there is no space between teeth (where they are turned) the gum tissue moves around a bit because it just sits there and doesn't go between teeth. (I don't know if that makes any sense.)
I'm concerned about my gum tissue because my ortho said it was a bit thin on bottom. Does gum tissue regrow for adults? According to what everyone is saying, it will sort of reshape around teeth once they are straightened, right?
If black triangles develop, is it essential to fix it? Is it dangerous if they remain?
four bicuspids removed 1/3/06
clear uppers and metal lowers placed 1/5/06
timeframe for braces: 24-30 months