title: A Comparative Study of the Shear and Tensile Bond Strength using three types of Direct Bonding Adhesives on Stainless Steel Brackets - An In Vitro Study.
abstract: BACKGROUND
  The purpose of this study was to compare the shear and tensile bond strength of three adhesive systems with increasing concentrations of filler for bonding brackets.
  
  
  METHODS
  The study was carried out on 120 extracted human premolars; randomly divided into six groups, three groups for shear bond strength & three for tensile bond strength, each subgroup consisting of 20 teeth; using light cured adhesive systems: Group 1: FORTIFY Unfilled, (unfilled penetrating resin) Group 2: ALITEF Low Filled (filler load 58% by weight) Group 3: PYRAMID Highly Filled (filler load greater than 80% by weight) with metal brackets (TP 256-650. TP orthodontic inc. Po.box 73,La Porte 46350,USA).
  
  
  RESULTS
  The findings showed that in vitro tensile bond strength and shear bond strength of PYRAMID [9.88/11.46 MPa resp.] is significantly greater than ALITEFLO[5.34/9.50 MPa resp.] and FORTIFY [2.65/5.39 MPa resp.].
  
  
  CONCLUSIONS
  Using the same bracket and force mode but different adhesive filler concentrations revealed increased shear and tensile bond strength with increased filler concentration. How to cite this article: Kumar PS, Patil C, Hullal B, Putturaj KT, Sangolgi VC, Jayasudha K. A Comparative Study of the Shear and Tensile Bond Strength using three types of Direct Bonding Adhesives on Stainless Steel Brackets - An In Vitro Study. J Int Oral Health 2013; 5(4):26-29.
authors.affiliation: Department of Orthodontics & Dento-facial Orthopaedics, Pandit Deendayal Upadhaya Dental College, Solapur, Maharashtra, India.
authors.forename: P
authors.initials: P
authors.lastname: Sunilkumar
authors.forename: Chandrashekhara
authors.initials: C
authors.lastname: Patil
authors.forename: Baswaraj
authors.initials: B
authors.lastname: H
authors.forename: Kt
authors.initials: K
authors.lastname: Putturaj
authors.forename: Vijaykumar C
authors.initials: VC
authors.lastname: Sangolgi
authors.forename: K
authors.initials: K
authors.lastname: Jayasudha
keywords: Filler Concentration; Shear Bond Strength; Tensile Bond Strength