The natural tooth is separated from the alveolar bone by the ligament and suspended in the alveolus via a connective tissue fiber apparatus. The fibers run in different directions, forming a network that is difficult to penetrate. The implant, on the other hand, is anchored directly in the bone and thus the periodontal cleft and Sharpey’s fibers are absent. In addition, the collagen fibers of the implant tissue do not insert on the implant, but are oriented parallel thereto, resulting in less connective tissue attachment. This contributes to the fact that peri-implant inflammations propagate 2-3 times faster and show a faster progressing bone loss than periodontal inflammation.