title: Effect of desensitizers on the bond strength of a self-etching adhesive system to caries-affected dentin on the gingival wall.
abstract: A self-etching dentin adhesive was evaluated for its ability to bond to caries-affected and sound dentin after applying three desensitizers to the gingival walls. Sixty extracted human molars, with approximal dentin caries, were cut horizontally on the long axis of the tooth through caries-affected gingival walls. Carious dentin was removed with SiC paper by means of a caries detector to expose caries-affected dentin. The molars were randomly assigned to four groups: control and three experimental groups-Micro Prime, Glauma Desentizer and Cervitec. Desensitizers were applied to the dentinal surfaces according to manufacturers' instructions. A resin composite was bonded to both the caries-affected and sound dentin of each tooth using a bonding system and plastic rings. The restoration was debonded by shear bond strength. The application of Micro Prime and Gluma Desensitizer to caries-affected dentin did not show any effect on bond strength testing. However, Cervitec caused a decrease in bond strength to caries-affected dentin. The effect of desensitizers on the bond strength of the self-etch bonding agent to caries-affected dentin changed according to the chemical composition of the materials. Desensitizer application on sound dentin is recommended with self-etch bonding systems.
authors.affiliation: Department of Conservative Dentistry, Selcuk University, Faculty of Dentistry, Konya, Turkey.
authors.forename: Abdulkadir
authors.initials: A
authors.lastname: Sengun
authors.forename: Alp Erdin
authors.initials: AE
authors.lastname: Koyuturk
authors.forename: Yagmur
authors.initials: Y
authors.lastname: Sener
authors.forename: Fusun
authors.initials: F
authors.lastname: Ozer
mesh_terms: D001558:Benzethonium / Q000737:chemistry; D002710:Chlorhexidine / Q000737:chemistry; D003188:Composite Resins / Q000737:chemistry; D001840:Dental Bonding; D003731:Dental Caries / Q000473:pathology*; D003764:Dental Materials / Q000737:chemistry*; D003799:Dental Stress Analysis; D003804:Dentin / Q000473:pathology*; D003807:Dentin Sensitivity / Q000188:drug therapy*; D017220:Dentin-Bonding Agents / Q000737:chemistry*; D004338:Drug Combinations; D005881:Gingiva / Q000473:pathology; D005976:Glutaral / Q000737:chemistry; D006801:Humans; D008422:Materials Testing; D008689:Methacrylates / Q000737:chemistry; D019279:Resin Cements / Q000737:chemistry; D033081:Shear Strength; D013314:Stress, Mechanical; D013499:Surface Properties; D013943:Thymol / Q000737:chemistry
chemical_list: D003188:Composite Resins; D003764:Dental Materials; D017220:Dentin-Bonding Agents; D004338:Drug Combinations; D008689:Methacrylates; C504371:Micro PrimeTM; C451600:OptiBond Solo Plus; D019279:Resin Cements; C079161:chlorhexidine, thymol drug combination; C111486:gluma desensitizer; C451741:point 4 composite resin; D001558:Benzethonium; D013943:Thymol; C005044:hydroxyethyl methacrylate; D002710:Chlorhexidine; D005976:Glutaral