Original scientific paper
Bond Strength of Newer Dentine Adhesive Systems
Vladimir Ivanović
; Klinika za bolesti zuba Stomatološki fakultet Univerziteta u Beogradu, Beograd
Abstract
Introduction of new dentine bonding agents in a practice of ientistry, variety of results on their crucial characteristics in foreign iterature and lack of information in our literature led to a necessity o conduct own scientific research on dentine adhesives in order to acilitate the choice of available products. The purpose of this study was to estimate the adhesive strentgth >/ different dentine bonding agents to a treated human dentine imnediatelly after light curing of a compatible composite material. Shear and tensile bond strength of Tripton, Gluma, Scotchbond- ' and Dentin Protector was measured. Control material was glass-io- \omer base-cement Vitrabond. Human extracted premolars from >oth jaws were prepared to a flat surface from either occlusal or uccal aspect, and materials were applied, respectively. The results showed: a) values of shear bond strength ranged rom 2,01—3,92 MPa with no statistical differences between tested ystems; b) tensile bond strength varied from 13,7—26—84 MPa; te highest value showed Scotchbond-2, following by Gluma, but
Ignificantly lower values showed Tripton and Dentin Protector; c) te aspect of prepared tooth crown had no significant effect on bond length with the exception o f shear bond strength for Gluma-system, ’hen applied on buccal surface showed significantly higher values lan applied occlusally; d) dentine-bonding agents which dissolve near layer with acid components and remove it from prepared entine surface showed stronger adhesion than agents which leave lis debris on a dentin surface.
Keywords
adhesion; dentine; shear bond strength; tensile bond rength
Hrčak ID:
100785
URI
Publication date:
15.6.1991.
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