title: Comparison of shear bond strength of resin reinforced chemical cure glass ionomer, conventional chemical cure glass ionomer and chemical cure composite resin in direct bonding systems: an in vitro study.
abstract: The acid pretreatment and use of composite resins as the bonding medium has disadvantages like scratching and loss of surface enamel, decalcification, etc. To overcome disadvantages of composite resins, glass ionomers and its modifications are being used for bonding. The study was conducted to evaluate the efficiency of resin reinforced glass ionomer as a direct bonding system with conventional glass ionomer cement and composite resin. The study showed that shear bond strength of composite resin has the higher value than both resin reinforced glass ionomer and conventional glass ionomer cement in both 1 and 24 hours duration and it increased from 1 to 24 hours in all groups. The shear bond strength of resin reinforced glass ionomer cement was higher than the conventional glass ionomer cement in both 1 and 24 hours duration. Conditioning with polyacrylic acid improved the bond strength of resin reinforced glass ionomer cement significantly but not statistically significant in the case of conventional glass ionomer cement.
authors.affiliation: Department of Orthodontics, Government Dental College and Hospital, Hyderabad, Andhra Pradesh, India. drsrinikrao@yahoo.co.in
authors.forename: Kolasani Srinivasa
authors.initials: KS
authors.lastname: Rao
authors.forename: T Praveen Kumar
authors.initials: TP
authors.lastname: Reddy
authors.forename: Garlapati
authors.initials: G
authors.lastname: Yugandhar
authors.forename: B Sunil
authors.initials: BS
authors.lastname: Kumar
authors.forename: S N Chandrasekhar
authors.initials: SN
authors.lastname: Reddy
authors.forename: Devatha Ashok
authors.initials: DA
authors.lastname: Babu
mesh_terms: D000134:Acid Etching, Dental / Q000379:methods; D000180:Acrylic Resins / Q000737:chemistry; D000538:Aluminum Silicates / Q000737:chemistry; D003188:Composite Resins / Q000737:chemistry*; D001840:Dental Bonding / Q000379:methods*; D003764:Dental Materials / Q000737:chemistry*; D003799:Dental Stress Analysis / Q000295:instrumentation; D005899:Glass Ionomer Cements / Q000737:chemistry*; D006801:Humans; D008422:Materials Testing; D016910:Orthodontic Brackets; D010756:Phosphoric Acids / Q000737:chemistry; D019279:Resin Cements / Q000737:chemistry*; D055116:Self-Curing of Dental Resins / Q000379:methods*; D033081:Shear Strength; D013314:Stress, Mechanical; D013696:Temperature; D013997:Time Factors; D014867:Water / Q000737:chemistry
chemical_list: D000180:Acrylic Resins; D000538:Aluminum Silicates; D003188:Composite Resins; D003764:Dental Materials; C112133:Fuji Ortho; D005899:Glass Ionomer Cements; D010756:Phosphoric Acids; C097531:Rely a Bond system; D019279:Resin Cements; D014867:Water; C084541:Fuji glass-ionomer lining cement; C006903:carbopol 940; C030242:phosphoric acid