Growing Bone Back After Periodontal Disease?

Sounds like you have two concerns - I will answer them separately:

1) Growing back lost bone:  The only documented way to grow bone back is thru the use of a laser procedure called LANAP (or some other variation.)    Since I don't believe that or similar procedure has been done, you can count on some re-attachment of the tissue and on healthier gums. 

2) The gaps between your front teeth: The good news is that these gaps are in your lower teeth, so hopefully they are not too visible in your smile.  And they are relatively easy to keep clean using some type of inter-prox brush or a waterpik.  Depending on the situation, a tissue graft, or injection of a derma filler into the gum might make the gaps less pronounced.  Another option may be to place bonding on the teeth so they can be a touch wider, thereby closing some of the gaps.  These are highly specialized situations though and I would not want to get your hopes up.

Glad to hear you've made the necessary first step to begin keeping periodontal disease in check.