Pathogenesis of bony pocket formation around dental implants

Abstract

This study was undertaken to explain differences in the pathogenesis of periodontitis and peri-implantitis. Histological observations were made on experimental and human material obtained at autopsy. The sections were prepared without decalcification and without removal of the implants by the cutting and grinding technique. In some cases the implant was exposed but the mucosa surrounding it showed no inflammation. In other cases granulation tissue had formed around the implants resulting in a polypoid mass and the adjacent mucosa was inflamed. A discussion and comparison of the pathogenesis of periodontitis and peri-implantitis is given.