Implants and the periodontium.

This paper compares the morphology and function of the natural periodontium with peri-implant tissues and tissue reactions. The comparison serves as a base for observations about the practical application of oral endosseous implants. The main conclusion is that the touch sensitivity of natural teeth at lower biting and chewing loads, that is in the phase of primary tooth mobility, during which only the soft parts of the periodontium are deformed, cannot be substituted by ankylotic retained implants.