title: Effect of caries removal techniques on the bond strength of adhesives to caries-affected primary dentin in vitro.
abstract: OBJECTIVE
  The aim of this in vitro study is to evaluate the effects of three different caries removal techniques on the microtensile bond strength of adhesive materials to caries-affected dentin.
  
  
  METHODS
  Thirty primary molar teeth were used. The teeth were randomly divided into three groups according to the caries removal technique employed: conventional steel bur (group 1); Er:YAG laser (group 2); chemomechanical method (group 3). Each group was divided into two subgroups according to bonding agents: one-step self-etch adhesive and etch-and-rinse adhesive. The teeth were restored with composite resin. Vertical sticks were obtained and subjected to tensile stress. Data were analyzed by two-way analysis of variance (ANOVA), Tukey's test and an independent samples t-test.
  
  
  RESULTS
  The values for the laser groups were significantly lower than those of the bur groups for both bonding agents (p<0.05). There were no significant differences between the bur and chemomechanical groups (p > 0.05).
  
  
  CONCLUSIONS
  Bur and chemomechanical techniques in primary teeth were found more successful. Similar results were found according to the adhesives used for each caries removal techniques.
authors.affiliation: Department of Pediatric Dentistry, University of Gaziantep, Gaziantep, Turkey.
authors.forename: E
authors.initials: E
authors.lastname: Yildiz
authors.forename: E
authors.initials: E
authors.lastname: Sirinkaraarslan
authors.forename: Z
authors.initials: Z
authors.lastname: Yegin
authors.forename: M A
authors.initials: MA
authors.lastname: Cebe
authors.forename: G
authors.initials: G
authors.lastname: Tosun
mesh_terms: D000268:Adhesiveness; D003188:Composite Resins / Q000737:chemistry; D003475:Curettage / Q000295:instrumentation; D001840:Dental Bonding; D003731:Dental Caries / Q000628:therapy*; D003737:Dental Cavity Preparation / Q000295:instrumentation / Q000379:methods*; D003738:Dental Cements / Q000737:chemistry; D003754:Dental High-Speed Equipment; D003764:Dental Materials / Q000737:chemistry; D003793:Dental Restoration, Permanent / Q000379:methods; D003799:Dental Stress Analysis / Q000295:instrumentation; D003804:Dentin / Q000648:ultrastructure*; D017220:Dentin-Bonding Agents / Q000737:chemistry*; D018698:Glutamic Acid / Q000627:therapeutic use; D006801:Humans; D053685:Laser Therapy / Q000295:instrumentation; D053844:Lasers, Solid-State / Q000627:therapeutic use; D007930:Leucine / Q000627:therapeutic use; D008239:Lysine / Q000627:therapeutic use; D008422:Materials Testing; D008689:Methacrylates / Q000737:chemistry; D008855:Microscopy, Electron, Scanning; D008963:Molar / Q000648:ultrastructure; D013232:Steel / Q000737:chemistry; D013314:Stress, Mechanical; D013499:Surface Properties; D013718:Tensile Strength; D014094:Tooth, Deciduous / Q000648:ultrastructure*
chemical_list: C554641:Adper single bond 2; C119934:Carisolv; D003188:Composite Resins; D003738:Dental Cements; D003764:Dental Materials; D017220:Dentin-Bonding Agents; C444701:Filtek Z250; C498353:G-Bond; C470230:Gradia; D008689:Methacrylates; D013232:Steel; D018698:Glutamic Acid; D007930:Leucine; D008239:Lysine