title: Effect of agitation of EDTA with 808-nm diode laser on dentin microhardness.
abstract: The aim of this study is to analyze the effect of agitation of ethylenediaminetetraacetic acid (EDTA) with diode laser at different agitation times on root dentin microhardness. Eighty-four specimens were divided randomly into seven groups, as follows: (1) distilled water, (2) 17% EDTA, (3) EDTA with 60 s ultrasonic agitation, (4) EDTA with 10 s laser agitation, (5) EDTA with 20 s laser agitation, (6) EDTA with 30 s laser agitation, and (7) EDTA with 40 s laser agitation. All of the specimens were irrigated with 5% NaOCl and distilled water except the distilled water group. Microhardness values were calculated before and after the procedures. Statistical analyses were performed using one-way ANOVA and Tukey post hoc tests. Statistically significant differences were determined between the distilled water and other groups. Also, statistically significant differences were observed between EDTA with 40 s laser agitation and EDTA, and EDTA with 10 and 20 s laser agitations. Ultrasonic agitation of EDTA affected microhardness of root dentin similar to EDTA (p > .05). All applications decreased the microhardness of root dentin when compared with distilled water. Agitation of EDTA with diode laser for 40 s caused more reduction in microhardness of root dentin when compared with EDTA.
authors.affiliation: Department of Endodontics, Dental Faculty, İzmir Katip Çelebi University, İzmir, 35620, Turkey, hakan.arslan@ikc.edu.tr.
authors.forename: Hakan
authors.initials: H
authors.lastname: Arslan
authors.forename: Kübra Y
authors.initials: KY
authors.lastname: Yeter
authors.forename: Ertugrul
authors.initials: E
authors.lastname: Karatas
authors.forename: Cenk B
authors.initials: CB
authors.lastname: Yilmaz
authors.forename: Leyla B
authors.initials: LB
authors.lastname: Ayranci
authors.forename: Damla
authors.initials: D
authors.lastname: Ozsu
mesh_terms: D003786:Dental Pulp Cavity / Q000187:drug effects* / Q000601:surgery; D003804:Dentin / Q000187:drug effects* / Q000601:surgery; D004492:Edetic Acid / Q000737:chemistry*; D006244:Hardness; D006801:Humans; D054023:Lasers, Semiconductor / Q000627:therapeutic use*; D009038:Motion; D011897:Random Allocation; D012388:Root Canal Irrigants / Q000737:chemistry*; D014092:Tooth Root / Q000187:drug effects* / Q000601:surgery; D014465:Ultrasonics
chemical_list: D012388:Root Canal Irrigants; D004492:Edetic Acid