title: A modified technique for removing a failed abutment screw from an implant with a custom guide tube.
abstract: Fracture of abutment screw is a serious prosthodontic complication. When the abutment screw is fractured at the junction of the screw shank and screw thread, removal of the fractured screw fragment from the screw hole can be difficult. This article describes a modified technique for removing the failed abutment screw with a custom guide tube and tungsten carbide bur. The failed screw can be removed speedily without damaging the screw hole of the implant body or the screw threads.
authors.affiliation: Department of Applied Prosthodontics, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan. yohsuke@nagasaki-u.ac.jp
authors.forename: Yohsuke
authors.initials: Y
authors.lastname: Taira
authors.forename: Takashi
authors.initials: T
authors.lastname: Sawase
mesh_terms: D000368:Aged; D000044:Dental Abutments; D003754:Dental High-Speed Equipment; D059605:Dental Implant-Abutment Design / Q000295:instrumentation; D017267:Dental Prosthesis Design; D019232:Dental Restoration Failure; D020878:Device Removal / Q000295:instrumentation / Q000379:methods*; D004867:Equipment Design; D005260:Female; D006801:Humans; D007180:Incisor; D017973:Tungsten Compounds / Q000737:chemistry
chemical_list: D017973:Tungsten Compounds; C002802:tungsten carbide