title: Technique-sensitivity of dentin-bonding agent application: the effect on shear bond strength using one-step self-etch adhesive in primary molars: an in vitro study.
abstract: OBJECTIVE
  The present study was undertaken to compare and evaluate the effect of technique-sensitivity on shear bond strength (SBS) of one-step self-etch adhesive, using multiple coats and different applicator designs, to dentin in deciduous molars.
  
  
  METHODS
  Flat buccal dentinal surfaces were obtained on 60 extracted human primary molars. The specimens were divided into 3 equal groups (n = 20). Self-etch adhesive was applied on the dentinal surface of group I with cotton pellet, group II with microapplicator tip, and group III using 3M brush. The groups were further divided into 2 subgroups-single coat of dentin-bonding agent (DBA) in subgroups A and triple coat (with no curing in between coats) in subgroups B. The composite was placed on the dentinal surface using split nylon cylinder and cured. SBS was tested for all specimens with Instron Universal testing machine. Data were statistically analyzed using one-way analysis of variance and Student's t test.
  
  
  RESULTS
  There was no statistically significant difference in the main study groups, that is, no significant difference in the SBS with the use of different applicator tips. However, the use of triple coat of self-etch DBA exhibited highly significant difference in the SBS as compared with single coat.
  
  
  CONCLUSIONS
  This study revealed that one-step self-etch adhesive could prove attractive in pediatric dentistry because of its lesser technique-sensitivity; however, increasing the number of coats of DBA (with no curing in between the layers) enhanced the bond strength to dentin owing to the improved resin infiltration.
authors.affiliation: Department of Pedodontics and Preventive Dentistry, Guru Nanak Dev Dental College and Research Institute, Sunam, Punjab, India. drsamritiamitjindal@yahoo.com
authors.forename: S
authors.initials: S
authors.lastname: Bansal
authors.forename: I K
authors.initials: IK
authors.lastname: Pandit
authors.forename: N
authors.initials: N
authors.lastname: Srivastava
authors.forename: N
authors.initials: N
authors.lastname: Gugnani
mesh_terms: D000704:Analysis of Variance; D017438:Bisphenol A-Glycidyl Methacrylate; D001840:Dental Bonding / Q000295:instrumentation / Q000379:methods*; D003799:Dental Stress Analysis; D017220:Dentin-Bonding Agents; D006801:Humans; D008963:Molar; D010755:Organophosphates; D019279:Resin Cements; D033081:Shear Strength; D014094:Tooth, Deciduous
chemical_list: C489661:Adper Prompt Self-Etch; D017220:Dentin-Bonding Agents; D010755:Organophosphates; D019279:Resin Cements; D017438:Bisphenol A-Glycidyl Methacrylate