Figure 3: A: Postoperative radiograph after insertion of 3 implants in the posterior maxilla region with representation of the measurement procedure for determining the initial findings. B: Radiograph of the same area at the 5-year follow-up examination with representation of the measurement procedure for determining peri-implant bone resorption.
Green line: initial bone height; blue arrow: implant length; orange line: apical implant edge; pink arrow: measured distance from the crestal bone to apical implant edge; red line: crestal bone line after peri-implant bone resorption