What is a two stage implant?
Implants are titanium screws that are placed within the jawbone to support a number of dental prostheses such as crowns, bridges and dentures. A two stage implant is when an implant is placed in the jawbone without the abutment. The implant is completely covered by the jawbone. After a few months for healing of the jaw, the gum tissue covers the bone, and a second surgery is performed to attach an abutment for securing the prosthesis. Two stage implants are generally used when there is poor bone quality, and safety is of high significance.
Why would a bone graft be unnecessary?
A bone graft may not be required if the amount of bone in the toothless gap is enough to hold an implant.