Once a tooth is extracted from the jaw, it will shrink in volume over time. If the tooth has been extracted and left for many years, then excessive shrinkage will have occurred. This results in inadequate bone volume to support a proper sized implant to support a tooth.
Bone grafting may be required if there is not enough bone to support the implant. The bone surrounding the implant should be at least 2mm thickness in volume to be able to properly support the implant, and not worry about thin bone receding.
Any surgical or invasive procedure carries risks. Before any procedure we will inform you of those risks by way of written informed consent documentation.