title: Comparative evaluation of the bonding efficacy of sixth and seventh generation bonding agents: An In-Vitro study.
abstract: OBJECTIVE
  To compare the shear bond strength of sixth generation and seventh generation bonding agents to dentin.
  
  
  METHODS
  EIGHTY HUMAN MAXILLARY PREMOLARS WERE REDUCED TO EXPOSE FLAT SURFACE OF DENTIN AND DIVIDED INTO FOUR EQUAL GROUPS, WHICH WERE BONDED USING FOLLOWING BONDING AGENTS: Sixth generation bonding agents, Adper SE Plus and Xeno III and Seventh generation bonding agents, Adper Easy One and Xeno V. Composite cylinders were then built using a plastic mould on these prepared dentinal surfaces. Samples were stored in distilled water for 24 hours and tested for shear bond strength with universal testing machine. Shear force was applied perpendicular to the long axis of composite cylinder at adhesive-tooth interface until debonding occurred. The data so obtained were tabulated and analyzed statistically using independent-samples t test and analysis of variance (ANOVA) test.
  
  
  RESULTS
  The seventh generation adhesives showed significantly higher shear bond strength to dentin compared to sixth generation adhesives (P < 0.01). The highest value of shear bond strength was obtained from Adper Easy One system, while Adper SE Plus gave the lowest shear bond strength values.
  
  
  CONCLUSIONS
  Seventh generation adhesives are more advantageous than sixth generation adhesives in dentin bonding as it requires less time, fewer steps, and better bond strength.
authors.affiliation: Department of Conservative Dentistry and Endodontics, Pushpagiri College of Dental Sciences, Tiruvalla, Kerala, India.
authors.forename: Manuja
authors.initials: M
authors.lastname: Nair
authors.affiliation: Department of Conservative Dentistry and Endodontics, VMS Dental College, Salem, Tamil Nadu, India.
authors.forename: Joseph
authors.initials: J
authors.lastname: Paul
authors.affiliation: Department of Conservative Dentistry and Endodontics, VMS Dental College, Salem, Tamil Nadu, India.
authors.forename: Satheesh
authors.initials: S
authors.lastname: Kumar
authors.affiliation: Department of Conservative Dentistry and Endodontics, VMS Dental College, Salem, Tamil Nadu, India.
authors.forename: Yadav
authors.initials: Y
authors.lastname: Chakravarthy
authors.affiliation: Department of Conservative Dentistry and Endodontics, VMS Dental College, Salem, Tamil Nadu, India.
authors.forename: Vel
authors.initials: V
authors.lastname: Krishna
authors.affiliation: Department of Conservative Dentistry and Endodontics, VMS Dental College, Salem, Tamil Nadu, India.
authors.lastname: Shivaprasad
keywords: Bond strength; dentin bonding agents; self-etch adhesives