title: Intraoral Laser Welding (ILW) in Implant Prosthetic Dentistry: Case Report.
abstract: The aim of this clinical study was to describe the possibility of using the Nd:YAG laser device utilized in the dental offices to weld metals intraorally. The authors, before applying this technique "in vivo" on human subjects, tested the "in vitro" metal welding efficacy of dental Nd:YAG device firstly by interferometry, SEM, and EDS and subsequently by thermal camera and thermocouples in order to record temperature changes during the welding process on bovine jaws. Four implants were inserted in the edentulous maxillary arch of a 67 years old male patient. Immediately after that, a bar previously made by the dental technician was intraorally welded to the abutments by Nd:YAG laser (Fidelis Plus III, Fotona, Slovenia) with these parameters: 9.90 mJ, 1 Hz, 15 msec, 0.6 mm spot. Then the prosthesis was connected to the bar with four OT Caps. This clinical study, even if preliminary, suggests that laser welding technique may be intraorally used without side effects.
authors.affiliation: Oral Medicine and Laser-Assisted Surgery Unit, Dental School, Faculty of Medicine, University of Parma, 29017 Fiorenzuola d'Arda, Italy.
authors.forename: Carlo
authors.initials: C
authors.lastname: Fornaini
authors.forename: Elisabetta
authors.initials: E
authors.lastname: Merigo
authors.forename: Igor
authors.initials: I
authors.lastname: Cernavin
authors.forename: Gonzalo
authors.initials: G
authors.lastname: Lòpez de Castro
authors.forename: Paolo
authors.initials: P
authors.lastname: Vescovi