There are three types of implant-related disease:
Implant-related mucositis
Peri-implantitis
Peri-implant deficiencies of gum tissue and/or jaw bone
Implant-related mucositis
Implant-related mucositis affects the soft gum tissue immediately surrounding the implant. This inflammation is caused by plaque Overview of Tooth Disorders and characterized by swollen gums that bleed when probed. Dentists treat this condition the same way they treat plaque.
Peri-implantitis
In peri-implantitis, inflammation of the soft tissues around the implant is accompanied by the progressive loss of supporting bone. Peri-implantitis is associated with poor plaque control and occurs in people with a history of severe periodontitis. Dentists treat it the same way they treat periodontitis Periodontitis Periodontitis is a severe form of gingivitis, in which the inflammation of the gums extends to the supporting structures of the tooth. Plaque and tartar build up between the teeth and gums and... read more 
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Peri-implant deficiencies of soft and/or hard tissues
Normal healing following tooth loss may result in deficiencies of the jaw bone or lack of gum tissue that is healthy enough and dense enough to support the implant. Dentists correct these abnormalities by grafting these hard or soft tissues.
