Receding Gums and Severe Bone Loss? (photo)

I would recommend you take the advice of your periodontist.  You have to treat the gum disease and pickets first to reduce the bacteria count in your mouth.  Once this is completed you might be a good candidate for gum grafting.  This is also a procedure that is completed by a periodontist.  Best of luck. 

If is difficult to tell without xrays and a clinical exam, but typically if you have extensive bone loss, it will be difficult to regain the lost gum tissue. If you have extensive bone loss, you may be in the case that the infection under your gum needs to be addressed to prevent the loss of your teeth. As my mentor used to say, sometimes its "a long tooth or no tooth."

There is no cure for periodontal disease...you can just maintain it.

Laser therapy is about as good as S/RP (scaling and root planing).

Repair of gum line depends on how much bone you have left around the tooth.