title: Using a porcelain furnace to debond cement-retained implant crown from the abutment after screw fracture: a clinical report.
abstract: When a screw fracture occurs on a cement-retained, implant-supported restoration, the abutment and restoration are completely separated from the implant's internal connection. Traditionally, an access hole is drilled through the crown to retrieve the broken screw, and the restoration can be placed again as a screw-retained restoration. This clinical report documents a patient whose broken abutment screw was retrieved from the restoration by burning off the cement and separating from the abutment without drilling an access hole.
authors.affiliation: Resident, Advanced Prosthodontics Program, The Ohio State University College of Dentistry, Columbus, OH.
authors.forename: Paola C
authors.initials: PC
authors.lastname: Saponaro
authors.forename: Reza H
authors.initials: RH
authors.lastname: Heshmati
authors.forename: Damian J
authors.initials: DJ
authors.lastname: Lee
mesh_terms: D001863:Bone Screws; D003442:Crowns; D000044:Dental Abutments; D003738:Dental Cements / Q000737:chemistry; D017005:Dental Debonding / Q000295:instrumentation* / Q000379:methods*; D017268:Dental Prosthesis Retention / Q000295:instrumentation; D019094:Dental Prosthesis, Implant-Supported / Q000379:methods; D019232:Dental Restoration Failure; D058250:Dental Restoration Repair / Q000379:methods*; D006361:Heating / Q000295:instrumentation* / Q000379:methods*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011176:Post and Core Technique; D015035:Zinc Oxide-Eugenol Cement / Q000737:chemistry* / Q000627:therapeutic use
chemical_list: D003738:Dental Cements; D015035:Zinc Oxide-Eugenol Cement
keywords: Dental implant; dental cement; screw fracture; single tooth