Rochelle, definitely get a second or third opinion before letting your current dentist perform another procedure. A few things about your condition sound strange. First, I've never heard of teeth being pushed "through" the jawbone by tongue thrusting or anything else besides severe trauma. Second, if your perio surgeries did not heal properly, then the procedures were not performed properly. Third, although bacteria may eat the bone around them, the roots of adult teeth do not become shorter. And fourth, if indeed there were no more bone on your bottom row, your bottom teeth would have loosened and fallen out long ago.
In my 60 years I've had orthodontia twice, two entire quadrants of perio surgery and a host of other dental procedures. As you describe it your condition and its corresponding diagnoses simply don't sound right.
Please keep us informed of your progress. Thanks.