title: The effects of water and acetone-based dentin adhesives on apical microleakage.
abstract: In this study, the aim was to assess the in vitro apical microleakage of a resin-based sealer used with two different adhesives. Thirty nine freshly extracted maxillary incisors were used. The teeth were decoronated at the cemento-enamel junction with a water-cooled fissure bur. Chemo-mechanical debridement of the root canals was accomplished with the step-back technique. The smear layer was removed by 19% ethylenediamine tetra acetic acid (EDTA). The roots were then divided into three experimental groups of thirteen teeth in each. Specimens in group 1 were filled with gutta-percha, AH Plus sealer, and water-based adhesive system (Syntac Single Component). Group 2 specimens were filled with gutta-percha, AH Plus sealer, and acetone-based dentin adhesive (Prime & Bond NT ). Specimens of group 3 were filled with only gutta-percha and AH Plus sealer (no adhesive was applied). The teeth were immersed into 2% methylene blue solution. Apical sealing qualities were assessed by measuring the linear dye penetration with a stereomicroscope. Dentin tubule penetration was observed under scanning electron microscopy (SEM). Results showed no statistically significant difference between the materials used, however, the leakage in group 2 was less than group 1 and 3.
authors.affiliation: University of Gazi, Faculty of Dentistry in Ankara, Turkey. s_sevimli@yahoo.com
authors.forename: L Sibel
authors.initials: LS
authors.lastname: Karadag
authors.forename: Oya
authors.initials: O
authors.lastname: Bala
authors.forename: Emin
authors.initials: E
authors.lastname: Türköz
authors.forename: Tansev
authors.initials: T
authors.lastname: Mihçioğlu
mesh_terms: D000096:Acetone; D003763:Dental Leakage; D003806:Dentin Permeability; D017220:Dentin-Bonding Agents / Q000737:chemistry*; D004853:Epoxy Resins; D006171:Gutta-Percha; D006801:Humans; D007180:Incisor; D008855:Microscopy, Electron, Scanning; D011109:Polymethacrylic Acids / Q000737:chemistry*; D019279:Resin Cements / Q000737:chemistry*; D012387:Root Canal Filling Materials; D012389:Root Canal Obturation / Q000379:methods*; D019227:Tooth Apex; D014867:Water
chemical_list: D017220:Dentin-Bonding Agents; D004853:Epoxy Resins; D011109:Polymethacrylic Acids; C425843:Prime and Bond NT; D019279:Resin Cements; D012387:Root Canal Filling Materials; C078484:Syntac dentine adhesive; C534916:epoxy resin-based root canal sealer; D014867:Water; D000096:Acetone; D006171:Gutta-Percha