Effect of low‐level laser therapy combined with 5000 parts per million fluoride dentifrice on postbleaching sensitivity: A clinical, randomized, and double‐blind study

• DOI: 10.1111/jerd.12386
• Publication Date: 2018-08-07T08:11:00Z
• Authors: Cristiane De Melo...; Brennda Lucy Frei...; Jesuína Lamartine...; Eliane Bemerguy A...; Fernanda Ferreira...; Cecy Martins Silva
• Keywords: Dentifrice

Abstract Objective The aim of this double‐blind, randomized, controlled clinical study was to assess the efficacy low‐level laser therapy (LLLT) combined with 5000 ppm fluoride dentifrice on postbleaching sensitivity in teeth exposed 35% hydrogen peroxide for four weeks. Materials and Methods Twenty‐five volunteers were evaluated using split‐mouth model which right left maxillary/mandibular quadrants randomized allocated one two groups: GPLACEBO, tip positioned without emission light (placebo effect) + sodium fluoride, or GLASER, comprised LLLT fluoride. For both groups, placebo used before bleaching, whereas applied after bleaching. at points: central cervical medial regions incisors, canines, premolars corresponding hemi‐arch. At each point, 60 J/cm 2 16 seconds an irradiance 3.75 W/cm therapeutic infrared device. To tooth sensitivity, a modified visual analogue scale evaporative stimulus, daily pain questionnaire also applied. Results Wilcoxon Friedman tests demonstrated significant difference incidence between GPLACEBO GLASER ( P ≤ .05), different evaluation times. Conclusion Teeth treated combination topical use bleaching session less compared application only. Clinical Significance improves symptoms dentin session.