title: A technique for retrieving cement-retained implant prostheses.
abstract: Lack of retrievability is one of the most important disadvantages of cement-retained implant restorations. A straightforward and cost-effective technique for accessing the abutment screw channel and unscrewing the abutment and cement-retained prosthesis as 1 unit is described. The technique does not jeopardize the integrity of the restoration, screw, abutment, or implant. A guiding acrylic resin index is fabricated for locating and guiding the access to the screw channel of the abutment, provided that the patient's cast with the implant analog is available. The procedure could be extrapolated to computer-aided designed and computer-aided manufactured (CAD-CAM) implant prostheses, whereby a CAD-CAM index could be fabricated on the digital model.
authors.affiliation: Associate Professor and Member of Evidence Based Dentistry Centre, Faculty of Oral and Dental Medicine, Cairo University, Cairo, Egypt. Electronic address: iman.abdelwahab@dentistry.cu.edu.eg.
authors.forename: Iman Abd-Elwahab
authors.initials: IA
authors.lastname: Radi
authors.affiliation: Doctoral student, Faculty of Oral and Dental Medicine, Cairo University, Cairo, Egypt.
authors.forename: Adnan
authors.initials: A
authors.lastname: Alfahd
mesh_terms: D000180:Acrylic Resins; D003362:Cost-Benefit Analysis; D003738:Dental Cements; D059605:Dental Implant-Abutment Design; D019094:Dental Prosthesis, Implant-Supported; D006801:Humans; D011475:Prosthesis Failure
chemical_list: D000180:Acrylic Resins; D003738:Dental Cements