title: Bonding of resin composite to caries-affected dentin after Carisolv(®) treatment.
abstract: OBJECTIVE
  The purpose of this study was to investigate the effect of Carisolv(®) on resin composite adhesion on caries-affected dentin.
  
  
  METHODS
  Carious lesion specimens (N =46) were prepared from 45 extracted primary molars: Group 1 (N =23)-chemomechanical (Carisolv(®)) treatment; Group 2 (N =23)-rotary instrumentation; and Group 3 (N =23)-caries-free specimens from 20 noncarious primary molars. After caries removal (Groups 1 and 2) or washing and drying (Group 3), a resin composite rod (2-mm high, 0.975-mm diameter) was bonded vertically to dentin. Specimens were stressed at constant displacement (1.0 mm/minute) to failure; treated surfaces were examined under a scanning electron microscope.
  
  
  RESULTS
  The mean (±SD) microshear bond strengths of resin composite to dentin were: Group 1=6.69 (±4.08) MPa; Group 2=10.31 (±5.47) MPa; and Group 3=7.16 (±6.64) MPa. The mean bond strength of resin composite of Group 2 significantly exceeded that of Groups 1 (P=.02) and 3 (P=.01); Groups 1 and 3 did not differ significantly. There was no significant association between failure mode and treatment type (P=.22) or mean bond strength (P=.44). Carisolv(®) removed the smear layer or limited its formation, producing demineralization incompletely infiltrated by resin composite.
  
  
  CONCLUSIONS
  Chemomechanical treatment of caries-affected dentin of primary teeth did not adversely affect resin composite bonding.
authors.affiliation: Assistant professor in pediatric dentistry, Jordan University of Science and Technology, Irbid, Jordan.
authors.forename: Feda
authors.initials: F
authors.lastname: Zawaideh
authors.forename: Joseph E A
authors.initials: JE
authors.lastname: Palamara
authors.forename: Louise B
authors.initials: LB
authors.lastname: Messer
mesh_terms: D000134:Acid Etching, Dental / Q000379:methods; D000268:Adhesiveness; D017438:Bisphenol A-Glycidyl Methacrylate / Q000737:chemistry; D003188:Composite Resins / Q000737:chemistry*; D001840:Dental Bonding; D003731:Dental Caries / Q000473:pathology*; D003737:Dental Cavity Preparation / Q000295:instrumentation / Q000379:methods*; D003764:Dental Materials / Q000737:chemistry*; D003799:Dental Stress Analysis / Q000295:instrumentation; D003804:Dentin / Q000473:pathology*; D017220:Dentin-Bonding Agents / Q000737:chemistry; D003890:Desiccation; D018698:Glutamic Acid / Q000737:chemistry*; D006801:Humans; D007930:Leucine / Q000737:chemistry*; D008239:Lysine / Q000737:chemistry*; D008422:Materials Testing; D008855:Microscopy, Electron, Scanning; D010756:Phosphoric Acids / Q000737:chemistry; D033081:Shear Strength; D016369:Smear Layer; D013314:Stress, Mechanical; D013499:Surface Properties
chemical_list: C119934:Carisolv; D003188:Composite Resins; D003764:Dental Materials; D017220:Dentin-Bonding Agents; C474035:Filtek Supreme; D010756:Phosphoric Acids; C115612:single bond; D018698:Glutamic Acid; D017438:Bisphenol A-Glycidyl Methacrylate; C030242:phosphoric acid; D007930:Leucine; D008239:Lysine