title: Trauma to an implant-supported crown that was saved by the fixation screw: a case report.
abstract: A traumatic impact to an implant-supported crown might damage the implant, restoration and peri-implant tissues. Ideally, only a small prosthetic retreatment is needed for restoration, as complicated prosthetic retreatments or surgical retreatments in particular, could be very inconvenient for the patient. However, there is a deficiency in literature on how the implant, restoration and surrounding tissues generally react to impact forces. This report demonstrates a case of trauma to an implant-supported crown in the maxillary anterior zone resulting in a displacement of the implant crown. After careful examination and follow-up, it appeared that only the fixation screw was damaged, whereas the implant, restoration and peri-implant tissues remained unharmed. Thanks to the protective qualities of the implant system, an easy prosthetic retreatment could restore the implant-supported crown and a surgical retreatment was prevented.
authors.affiliation: Department of Oral and Maxillofacial Surgery, University Medical Center Groningen, University of Groningen, The Netherlands. l.den.hartog@kchir.umcg.nl
authors.forename: Laurens
authors.initials: L
authors.lastname: den Hartog
authors.forename: Henny J A
authors.initials: HJ
authors.lastname: Meijer
authors.forename: Kees
authors.initials: K
authors.lastname: Stellingsma
authors.forename: Hendrik J
authors.initials: HJ
authors.lastname: Santing
authors.forename: Gerry M
authors.initials: GM
authors.lastname: Raghoebar
mesh_terms: D000293:Adolescent; D001696:Biomechanical Phenomena; D003442:Crowns; D000044:Dental Abutments; D015921:Dental Implants; D017269:Dental Prosthesis Repair; D017268:Dental Prosthesis Retention / Q000295:instrumentation*; D019094:Dental Prosthesis, Implant-Supported; D005500:Follow-Up Studies; D006801:Humans; D007180:Incisor; D008297:Male; D008437:Maxilla; D013314:Stress, Mechanical
chemical_list: D015921:Dental Implants