title: A modified technique for preventing excess cement around implant supported restoration margins.
abstract: Different techniques have been proposed for cementing crown restorations to implant abutments without excess cement extruding beyond difficult-to-access restoration margins. In one approach, a copy abutment is fabricated onto which the cement-filled crown is fitted extraorally, allowing excess cement to be easily removed before intraoral transfer. This article presents a modification of this technique, wherein hot melt thermoplastic material is used for the copy abutment instead of polyvinyl siloxane. This simplifies the technique, making it faster and more reliable. It involves injecting hot melt thermoplastic material into the wetted intaglio surface of the crown, fitting a dowel pin to serve as a removal handle, filling the crown with cement, fitting it onto the copy abutment, and wiping the excess at the margins before intraoral transfer and definitive cementation.
authors.affiliation: Associate Professor, Department of Oral Rehabilitation Sciences, Faculty of Dentistry, Beirut Arab University, Beirut, Lebanon; and Associate Professor, Department of Fixed Prosthodontics, Faculty of Dentistry, Misr University for Science and Technology, Gaza, Egypt.
authors.forename: Mohammad M
authors.initials: MM
authors.lastname: Rayyan
authors.affiliation: Graduate student, Department of Oral Rehabilitation Sciences, Faculty of Dentistry, Beirut Arab University, Beirut, Lebanon. Electronic address: hiba.makarem@gmail.com.
authors.forename: Hiba A
authors.initials: HA
authors.lastname: Makarem
mesh_terms: D002484:Cementation / Q000379:methods*; D003442:Crowns; D003738:Dental Cements; D059605:Dental Implant-Abutment Design; D019094:Dental Prosthesis, Implant-Supported; D006801:Humans
chemical_list: D003738:Dental Cements