title: Effect of low-intensity laser treatment on pain after extraction of impacted mandibular third molars: a randomised, controlled, clinical trial.
abstract: Extraction of impacted third molars is painful, so we have evaluated whether low-intensity laser could reduce the pain. Sixty patients were randomly allocated to five groups that were treated with laser immediately after extraction. Postoperative pain was evaluated after two and seven days. The Shapiro-Wilk test was used to assess whether the distribution was normal, and as it was skewed, the Kruskal-Wallis test, ANOVA and the Student-Newman-Keuls test for multiple comparisons were used to compare the groups. The Wilcoxon test was used for comparisons of pain (measured by visual analogue scale (VAS) and numerical rating scale (NRS) 101 between the second and seventh postoperative days). Probabilities of less than 0.05 were accepted as significant. We conclude that a single session of low intensity laser had no significant effect on the amount of pain under the conditions investigated.
authors.affiliation: Biophotonics Applied to Health Sciences Postgraduation Program and Rehabilitation Sciences Postgraduation Program, Nove de Julho University - UNINOVE. Electronic address: simoneosierra@gmail.com.
authors.forename: Simone Oliveira
authors.initials: SO
authors.lastname: Sierra
authors.affiliation: Biophotonics Applied to Health Sciences Postgraduation Program and Rehabilitation Sciences Postgraduation Program, Nove de Julho University - UNINOVE. Electronic address: amdeana@gmail.com.
authors.forename: Alessandro Melo
authors.initials: AM
authors.lastname: Deana
authors.affiliation: Biophotonics Applied to Health Sciences Postgraduation Program and Rehabilitation Sciences Postgraduation Program, Nove de Julho University - UNINOVE. Electronic address: sandra.skb@gmail.com.
authors.forename: Sandra Kalil
authors.initials: SK
authors.lastname: Bussadori
authors.affiliation: Biophotonics Applied to Health Sciences Postgraduation Program and Rehabilitation Sciences Postgraduation Program, Nove de Julho University - UNINOVE. Electronic address: ana_cmota@yahoo.com.br.
authors.forename: Ana Carolina Costa
authors.initials: AC
authors.lastname: da Mota
authors.affiliation: Biophotonics Applied to Health Sciences Postgraduation Program and Rehabilitation Sciences Postgraduation Program, Nove de Julho University - UNINOVE. Electronic address: larajmotta@terra.com.br.
authors.forename: Lara Jansiski
authors.initials: LJ
authors.lastname: Motta
authors.affiliation: Biophotonics Applied to Health Sciences Postgraduation Program and Rehabilitation Sciences Postgraduation Program, Nove de Julho University - UNINOVE. Electronic address: raquel.mesquita@gmail.com.
authors.forename: Raquel Agnelli Mesquita
authors.initials: RA
authors.lastname: Ferrari
authors.affiliation: Biophotonics Applied to Health Sciences Postgraduation Program and Rehabilitation Sciences Postgraduation Program, Nove de Julho University - UNINOVE. Electronic address: tatiana.schalch@gmail.com.
authors.forename: Tatiana Dias
authors.initials: TD
authors.lastname: Schalch
authors.affiliation: Biophotonics Applied to Health Sciences Postgraduation Program and Rehabilitation Sciences Postgraduation Program, Nove de Julho University - UNINOVE. Electronic address: kristianneporta@gmail.com.
authors.forename: Kristianne Porta Santos
authors.initials: KP
authors.lastname: Fernandes
mesh_terms: D006801:Humans; D053685:Laser Therapy; D007834:Lasers; D008334:Mandible / Q000601:surgery; D008964:Molar, Third / Q000601:surgery; D010147:Pain Measurement; D010149:Postoperative Pain / Q000517:prevention & control; D014081:Tooth Extraction; D014095:Tooth, Impacted / Q000601:surgery
keywords: Laser; healing; inflammation; randomized clinical trial; tooth extraction