last time during the procedure of pulling my teeth out and put the bone graft in. after he pulled my front teeth out, he checked my bone graft. I heard he said to the other doctor that I had enough bone graft, so now I knew that he didn't put enough bone graft for me. that's why my bone graft were disappeared so soon ( just seven months). I' m so mad because I have to pay him money again for the second time. He said it was my fault not his fault.