title: Laser Application in Dentistry: Irradiation Effects of Nd:YAG 1064 nm and Diode 810 nm and 980 nm in Infected Root Canals-A Literature Overview.
abstract: Objective. In endodontics, Nd:YAG laser (1064 nm) and diode laser (810 nm and 980 nm) devices are used to remove bacteria in infected teeth. A literature review was elaborated to compare and evaluate the advantages and disadvantages of using these lasers. Methods. Using combined search terms, eligible articles were retrieved from PubMed and printed journals. The initial search yielded 40 titles and 27 articles were assigned to full-text analysis. The studies were classified based upon laser source, laser energy level, duration/similarity of application, and initial and final bacterial count at a minimum of 20 prepared root canals. Part of the analysis was only reduced microorganisms and mechanically treated root canals upon preparation size of ISO 30. All studies were compared to evaluate the most favorable laser device for best results in endodontic therapy. Results. A total of 22 eligible studies were found regarding Nd:YAG laser 1064 nm. Four studies fulfilled all demanded criteria. Seven studies referring to the diode laser 980 nm were examined, although only one fulfilled all criteria. Eleven studies were found regarding the diode laser 810 nm, although only one study fulfilled all necessary criteria. Conclusions. Laser therapy is effective in endodontics, although a comparison of efficiency between the laser devices is not possible at present due to different study designs, materials, and equipment.
authors.affiliation: Department of Conservative Dentistry, Periodontology and Preventive Dentistry, RWTH Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany; Praxis für Laserzahnheilkunde Dres. Jung & Kuypers, Neusser Strasse 600, 50737 Köln, Germany.
authors.forename: Yves
authors.identifier: 0000-0002-6640-2323
authors.initials: Y
authors.lastname: Saydjari
authors.affiliation: Praxis für Laserzahnheilkunde Dres. Jung & Kuypers, Neusser Strasse 600, 50737 Köln, Germany.
authors.forename: Thorsten
authors.initials: T
authors.lastname: Kuypers
authors.affiliation: Department of Conservative Dentistry, Periodontology and Preventive Dentistry, RWTH Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany.
authors.forename: Norbert
authors.initials: N
authors.lastname: Gutknecht
mesh_terms: D001424:Bacterial Infections / Q000382:microbiology / Q000601:surgery; D003786:Dental Pulp Cavity / Q000382:microbiology / Q000601:surgery*; D006801:Humans; D054023:Lasers, Semiconductor / Q000627:therapeutic use*; D053844:Lasers, Solid-State / Q000627:therapeutic use*; D018915:Root Canal Preparation / Q000379:methods; D014076:Tooth Diseases / Q000382:microbiology / Q000601:surgery*