Since some of us are facing this problem, thought I'd start a thread for it. if anyone has any good tips or procedures let us know. I know the following: traditional gum graft surgery where they take tissue from the roof of your mouth and stitch it between your teeth is terrible because it comes out looking a different color than your native gum tissue. thus far they have some kind of "alloderm"(bovine tissue) they sometimes stitch there and I've heard of the possibility of this regenerating some tissue, but really, if you have dark triangles caused by recession or othodontincs it's not going to fill that space up.
this, I think is another area where science will have to invent some kind of regenerative thing. honestly, BICUSPID EXTRACTIONS are so INCREDIBLY detrimental to your oral health --and also, long term in braces, esp. as you get older...