title: Bond strength and microleakage of self-adhesive and conventional fissure sealants.
abstract: The aim of this study was to compare the shear bond strengths (SBS), failure modes (adhesive, cohesive, or mixed), and marginal microleakage occurrence of conventional resin (CR)-based, glass ionomer (GI)-based, and self-adhesive resin (SAR)-based fissure sealants with or without prior phosphoric acid (PA) etching. Fifty extracted premolars were randomly and equally assigned into five groups -G1:PA+CR, G2:PA+GI, G3:GI, G4:PA+SAR, and G5:SAR. Prior PA etching significantly (p<0.05) increased the SBSs of sealants. Adhesive failure mainly occurred in teeth treated with SAR- or GI-based fissure sealants, and cohesive failure mainly occurred in PA-etched teeth. Microleakage occurrence differed significantly (p<0.05) among the five groups of treated teeth. We concluded that conditioning of a tooth's enamel surface is crucial to creating strong bonds and leak-free sealing between tooth and fissure sealant.
authors.affiliation: Department of Pediatric Dentistry, Faculty of Dentistry, Ataturk University.
authors.forename: Sera
authors.initials: S
authors.lastname: Simsek Derelioglu
authors.forename: Yucel
authors.initials: Y
authors.lastname: Yilmaz
authors.forename: Pelin
authors.initials: P
authors.lastname: Celik
authors.forename: Burak
authors.initials: B
authors.lastname: Carikcioglu
authors.forename: Sultan
authors.initials: S
authors.lastname: Keles
mesh_terms: D001840:Dental Bonding; D003738:Dental Cements; D006801:Humans; D066298:In Vitro Techniques; D008422:Materials Testing; D010895:Pit and Fissure Sealants; D033081:Shear Strength
chemical_list: D003738:Dental Cements; D010895:Pit and Fissure Sealants