title: [Microbial contamination of the implant-abutment connections: Review of the literature].
abstract: Today manufacturing process of dental implant parts allows for a precision of fit between implant and abutment of several microns. This microgap opens and closes under occlusal forces, leading to a pumping effect and to a contamination of the implant from bacteria and oral fluids. This kind of contamination is seen in all systems even if less often with internal connections that offers a better fit. Apart from this junction area, the screw well is another contamination pathway if the filling materials do not guarantee a hermetic sealing. The nature of contamination depends on the surrounding oral flora. When present, contamination leads to a persistent inflammatory reaction nearby the seal. The use of antiseptics or other materials for sealing the microgap decreases the risk of contamination and improves the gingival reaction. However, these solutions are time-limited.
authors.affiliation: Département de prothèses, faculté de chirurgie dentaire, 8, rue Sainte-Elisabeth, 67000 Strasbourg, France.
authors.forename: S
authors.initials: S
authors.lastname: Baixe
authors.affiliation: Département de parodontologie, faculté de chirurgie dentaire, 1, place de l'Hôpital, 67000 Strasbourg, France.
authors.forename: H
authors.initials: H
authors.lastname: Tenenbaum
authors.affiliation: Département de prothèses, faculté de chirurgie dentaire, 8, rue Sainte-Elisabeth, 67000 Strasbourg, France. Electronic address: olivier.etienne@unistra.fr.
authors.forename: O
authors.initials: O
authors.lastname: Etienne
mesh_terms: D001424:Bacterial Infections / Q000453:epidemiology* / Q000209:etiology; D000044:Dental Abutments / Q000009:adverse effects / Q000382:microbiology*; D019551:Dental Disinfectants / Q000494:pharmacology; D059605:Dental Implant-Abutment Design / Q000009:adverse effects / Q000706:statistics & numerical data; D015921:Dental Implants / Q000009:adverse effects / Q000382:microbiology*; D003764:Dental Materials; D004866:Equipment Contamination / Q000706:statistics & numerical data*; D006801:Humans
chemical_list: D019551:Dental Disinfectants; D015921:Dental Implants; D003764:Dental Materials
keywords: Dental abutments; Dental implants; Implants dentaires; Peri-implantitis; Piliers implantaires; Péri-implantite