Do you need a second bone graft at time of implant placement when you have had a bone graft a few months earlier?

It is sometimes necessary to have the second bone graft if there is not adequate healing from the first graft.

Usually, a bone graft is not necessary at the time of implant placement if the previous graft has completely regenerated. However, in some cases, there may not be sufficient bulk after grafting for ideal thickness when placing an implant. This can be due to several reasons; your body didn't regenerate the graft fully, some of the graft resorbed, there was tension in the area...