title: Clinical and scanning electron microscopy evaluation of the Er,Cr:YSGG laser therapy for treating dentine hypersensitivity: short-term, randomised, controlled study.
abstract: Er,Cr:YSGG laser is a rising treatment option for dentine hypersensitivity (DH). However, there is no data available concerning the scanning electron microscope (SEM) evaluation of the clinical application of Er,Cr:YSGG laser in the treatment of DH. The aim of this study was to evaluate and compare the desensitising and tubule occlusion effects of Er,Cr:YSGG laser with different power settings. Twenty patients (60 teeth) participated in this study. For each patient, teeth were randomised to 3 groups. In groups 1 and 2, patients were treated with Er,Cr:YSGG laser at 0.25 and 0.5 W, respectively. In control group, same laser was applied without laser emission. DH was assessed for all groups with a visual analogue scale (VAS). When compared with the baseline data and control group, in both active treatment groups laser irradiation provided a desensitising effect immediately after treatment (P < 0.001). In group 2, VAS scores were significantly lower than group 1. The tubule diameters in the both laser groups were significantly smaller than the control group (P < 0.01). When group 1 compared with group 2, group 2 showed significantly smaller tubule diameters (P < 0.001). Both 0.25 and 0.5 W laser irradiation were effective for the treatment of DH; however, 0.5 W laser irradiation showed best results for the decrease in VAS scores. The SEM findings of the reduction in number/patency of dentine tubules seem to be related to the clinical findings, which were associated with improvement in treatment efficacy.
authors.affiliation: Department of Periodontology, Faculty of Dentistry, Near East University, Mersin 10, Turkey.
authors.forename: H G
authors.initials: HG
authors.lastname: Yilmaz
authors.forename: H
authors.initials: H
authors.lastname: Bayindir
mesh_terms: D000293:Adolescent; D000328:Adult; D000537:Aluminum Oxide; D003807:Dentin Sensitivity / Q000503:physiopathology / Q000532:radiotherapy*; D004871:Erbium; D005260:Female; D006801:Humans; D053844:Lasers, Solid-State / Q000627:therapeutic use*; D028022:Low-Level Light Therapy / Q000379:methods; D008297:Male; D008855:Microscopy, Electron, Scanning; D008875:Middle Aged; D010147:Pain Measurement; D017060:Patient Satisfaction; D013499:Surface Properties; D016896:Treatment Outcome; D015019:Yttrium
chemical_list: D015019:Yttrium; D004871:Erbium; D000537:Aluminum Oxide
keywords: dentine hypersensitivity; laser therapy; scanning electron microscopy