Physicochemical Properties of Dentine Subjected to Microabrasive Blasting and Its Influence on Bonding to Self-Adhesive Prosthetic Cement in Shear Bond Strength Test: An In Vitro Study |
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| Authors: | Marcin Szerszeń ,Julia Higuchi,Barbara Romelczyk-Baishya,Bartł omiej Gó rski,Witold Ł ojkowski,Zbigniew Pakieł a,Elż bieta Mierzwiń ska-Nastalska |
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| Affiliation: | 1.Department of Prosthodontics, Medical University of Warsaw, 02097 Warsaw, Poland;2.Laboratory of Nanostructures, Institute of High Pressure Physics, Polish Academy of Sciences, 01424 Warsaw, Poland; (J.H.); (W.Ł.);3.Faculty of Materials Science and Engineering, Warsaw University of Technology, 02507 Warsaw, Poland; (B.R.-B.); (Z.P.);4.Department of Periodontal and Oral Mucosa Diseases, Medical University of Warsaw, 02097 Warsaw, Poland; |
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| Abstract: | The aim of this in vitro study was to assess the influence of microabrasive blasting on the physicochemical properties of dentine and shear bond strength (SBS) of self-adhesive resin cement (Maxcem Elite, Kerr, Orange, CA, USA) bonded to the dentine surface. Ninety cylindrical specimens with exposed dentine of human teeth were prepared and divided into three randomized, parallel sample sets A, B, and C. Groups B and C were subjected to abrasive blasting using a micro-sandblasting device (Microetcher IIa, Danville Materials, Carlsbad, CA, USA) with two gradations of Al2O3 abrasives (Group B, abrasion with a gradation of 50 μm; group C, abrasion with a gradation of 27 μm). SEM imaging, profilometry, chemical composition analysis, contact angle measurements, surface free energy, and SBS tests were performed. The resulting data were statistically analyzed using the Statistica software (ver. 13.3, Tibco Software Inc., Palo Alto, CA, USA). Microabrasive blasting caused changes in surface topography, structural features, and the connection strength between the dentin surface and self-adhesive prosthetic cement. Air microabrasion through the multifactorial positive reorganization of the treated surface of dentine is recommended as a pretreatment method in fixed prosthodontics adhesive cementation protocols. |
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| Keywords: | microabrasive blasting sandblasting air-micro-abrasion microabrasion shear bond strength dentine properties self-adhesive resin cement |
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