All-on-4® is a specialized method of restoring a full arch, using implants as supports. This technique involves placing four implants into the jaw. Because two of the four implants are placed at an angle into the jaw using specially designed implants, even patients with diminished jawbones may be eligible for this treatment option. Two anterior implants are placed vertically and two posterior implants are placed at an angle to take advantage of the existing bone density. This allows the prosthesis, which is fixed to the implants, to be held in place more securely than a traditional denture and using fewer implants than other full arch restorations. All-on-4® implant surgical placement and prosthetic attachment can often be completed in a single day.