title: Effect of Different Antioxidants on the Microtensile Bond Strength of an Adhesive System to Sodium Hypochlorite-treated Dentin.
abstract: OBJECTIVE
  To evaluate the effects of different antioxidant treatments on the microtensile bond strength of an adhesive system to sodium hypochlorite (NaOCl)-treated dentin.
  
  
  METHODS
  Thirty extracted third molars were sectioned 3 mm below the occlusal surface and divided into six groups according to the antioxidant treatment received: control group: distilled water; NaOCl group: 5.25% NaOCl and distilled water; proanthocyanidin (PA) group: 5.25% NaOCl, 5% PA and distilled water; 1-week storage group: 5.25% NaOCl and storage for 1 week in distilled water; Accel group: 5.25% NaOCl, Accel, and distilled water; noni group: 5.25% NaOCl, noni fruit juice, and distilled water. NaOCl, PA, Accel, noni, and distilled water were administered for 30 s, 10 min, 30 s, 10 min, and 30 s, respectively. A self-etching adhesive system (Single Bond Universal Adhesive) was applied to each specimen and a resin composite (Filtek Z550) was built up to a height of 5 mm on the dentin surface. Each specimen was serially sectioned to obtain sticks with a cross-sectional area of 1 mm2, and their microtensile bond strength was determined. Statistical differences between groups were analyzed using one-way ANOVA and Tamhane's T2 test.
  
  
  RESULTS
  Microtensile bond strength in the NaOCl group was significantly lower than in all other groups. However, there were no significant differences in the bond strength between the groups treated with different antioxidants.
  
  
  CONCLUSIONS
  NaOCl significantly reduced the microtensile bond strength of the adhesive system. The application of PA, Accel, and noni fruit juice to NaOCl-treated dentin significantly improved the microtensile bond strength.
authors.forename: Benin
authors.initials: B
authors.lastname: Dikmen
authors.forename: Ozge
authors.initials: O
authors.lastname: Gurbuz
authors.forename: Alev
authors.initials: A
authors.lastname: Ozsoy
authors.forename: Meltem Mert
authors.initials: MM
authors.lastname: Eren
authors.forename: Aylin
authors.initials: A
authors.lastname: Cilingir
authors.forename: Taner
authors.initials: T
authors.lastname: Yucel
mesh_terms: D000975:Antioxidants / Q000737:chemistry*; D017438:Bisphenol A-Glycidyl Methacrylate / Q000737:chemistry; D003188:Composite Resins / Q000737:chemistry; D001840:Dental Bonding; D003804:Dentin / Q000187:drug effects / Q000648:ultrastructure*; D017220:Dentin-Bonding Agents / Q000737:chemistry*; D000067030:Fruit and Vegetable Juices; D006801:Humans; D008422:Materials Testing; D032066:Morinda; D044945:Proanthocyanidins / Q000737:chemistry; D012388:Root Canal Irrigants / Q000737:chemistry* / Q000494:pharmacology; D012973:Sodium Hypochlorite / Q000737:chemistry* / Q000494:pharmacology; D013314:Stress, Mechanical; D013718:Tensile Strength; D013997:Time Factors; D014050:Toluene / Q000031:analogs & derivatives / Q000737:chemistry; D014867:Water / Q000737:chemistry
chemical_list: D000975:Antioxidants; D003188:Composite Resins; D017220:Dentin-Bonding Agents; D044945:Proanthocyanidins; D012388:Root Canal Irrigants; C115612:single bond; D014867:Water; C013221:proanthocyanidin; D014050:Toluene; D017438:Bisphenol A-Glycidyl Methacrylate; D012973:Sodium Hypochlorite; C065428:4-toluenesulfinic acid