Peri-implantitis, like periodontitis (gum disease), is a bacterial infection that affects surrounding gum and bone tissue, causing it to eventually dissolve away. While periodontitis affects natural teeth, gums and bone, peri-implantitis affects the site of a dental implant.
Early warning signs of peri-implantitis include red, swollen gums and bleeding when gums are probed. If left untreated, peri-implantitis can result in bone loss around the implant, which makes the implant become unstable or even come loose.