If I have a bone graft but do not place an implant for 2 to four years what will happen to the area grafted? Will the bone begin to recede in this time period? The socket of the missing tooth has likely filled with bone after being gone for so many years, I just want to build the ridge and prepare for an implant down the road. I need a gum graft so I figured I could "kill two birds with one stone". Thanks