title: An unusual bone loss around implants.
abstract: Pre-implant disease is an inflammatory process that affects the surrounding tissues of a functional osseointegrated implant. It is usually the result of a disequilibrium between the micro-flora and the defense system. This case reports a 57-year-old man with unusual bone loss around dental implants. This was an unusual case of peri-implantitis that occurred only in the implants on one side of the mouth although they were all unloaded implants.
authors.affiliation: Associate Professor, Dental Implant Research Center, Department of Periodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Amir Reza
authors.initials: AR
authors.lastname: Rokn
authors.affiliation: Postgraduate Student of Periodontics. Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Neda
authors.initials: N
authors.lastname: Sajedinejad
authors.affiliation: Postgraduate Student of Periodontics. Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Hosnieh
authors.initials: H
authors.lastname: Yousefyfakhr
authors.affiliation: General Dentist, Private Practice, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Samare
authors.initials: S
authors.lastname: Badri
keywords: Bone loss; Implant Complication; Periimplantitis