title: A Comparative Evaluation of Effect of Different Chemical Solvents on the Shear Bond Strength of Glass Fiber reinforced Post to Core Material.
abstract: OBJECTIVE
  To compare the effect of different chemical solvents on glass fiber reinforced posts and to study the effect of these solvents on the shear bond strength of glass fiber reinforced post to core material.
  
  
  METHODS
  This study was conducted to evaluate the effect of three chemical solvents, i.e. silane coupling agent, 6% H2O2 and 37% phosphoric acid on the shear bond strength of glass fiber post to a composite resin restorative material. The changes in post surface characteristics after different treatments were also observed, using scanning electron microscopy (SEM) and shear bond strength was analyzed using universal testing machine (UTM).
  
  
  RESULTS
  Surface treatment with hydrogen peroxide had greatest impact on the post surface followed by 37% phosphoric acid and silane. On evaluation of the shear bond strength, 6% H2O2 exhibited the maximum shear bond strength followed in descending order by 37% phosphoric acid and silane respectively.
  
  
  CONCLUSIONS
  The surface treatment of glass fiber post enhances the adhesion between the post and composite resin which is used as core material. Failure of a fiber post and composite resin core often occurs at the junction between the two materials. This failure process requires better characterization. How to cite this article: Sharma A, Samadi F, Jaiswal JN, Saha S. A Comparative Evaluation of Effect of Different Chemical Solvents on the Shear Bond Strength of Glass Fiber Reinforced Post to Core Material. Int J Clin Pediatr Dent 2014;7(3):192-196.
authors.affiliation: Postgraduate, Department of Pedodontics and Preventive Dentistry, Sardar Patel Postgraduate Institute of Dental and Medical Sciences Lucknow, Uttar Pradesh, India.
authors.forename: Ashish
authors.initials: A
authors.lastname: Sharma
authors.affiliation: Profesor and Head, Department of Pedodontics and Preventive Dentistry, Sardar Patel Postgraduate Institute of Dental and Medical Sciences Lucknow, Uttar Pradesh, India.
authors.forename: Firoza
authors.initials: F
authors.lastname: Samadi
authors.affiliation: Professor and Director, Department of Pedodontics and Preventive Dentistry, Sardar Patel Postgraduate Institute of Dental and Medical Sciences Lucknow, Uttar Pradesh, India.
authors.forename: Jn
authors.initials: J
authors.lastname: Jaiswal
authors.affiliation: Senior Lecturer, Department of Pedodontics and Preventive Dentistry, Sardar Patel Postgraduate Institute of Dental and Medical Sciences Lucknow, Uttar Pradesh, India.
authors.forename: Sonali
authors.initials: S
authors.lastname: Saha
keywords: 37% Phosphoric acid.; 6% Hydrogen peroxide; Composite resin; Core build up; Glass fiber post; Shear bond strength; Silane coupling agent