Q. I have severe bone loss and my periodontist wants to do osseous surgery on my upper and lower right jaw,(4 or more teeth upper and lower. I have already had the periodontal work done on the other side of my jaw, and I’m wondering is this is the same as lifting the flap of gum and cleaning the teeth, bone or whatever, which is what he did before? Can you explain to me if this is different, or what? Thank you.,