fa Niobium pentoxide as a novel filler for dental adhesive resin ترمیمی Cosmetic and Restorative Dentistry پژوهشي Research <p> <strong>Objectives</strong></p><p>  The purpose of this study was to develop an adhesive resin with incorporation of niobium pentoxide and evaluate its properties.</p><p> <strong> Methods</strong></p><p>  Niobium pentoxide was characterised by X-ray diffraction, surface area, particle size, micro-Raman, scanning electron microscopy and the effectiveness of silanisation process by Fourier Transform Infrared (FTIR). An experimental adhesive resin was formulated with 0, 5, 10 and 20wt% Nb2O5. The formulated adhesive resins were evaluated based on microhardness, degree of conversion, radiopacity and interface (resin/dentine) characterisation by micro-Raman. </p><p> <strong>Results</strong></p><p>  The particles used in this study presented a monoclinic crystalline phase with typical chemical groups and micrometre mean size. Microhardness and radiopacity increased with higher amounts of Nb2O5, and the particles were able to penetrate into the hybrid layers. <strong></strong></p><p> <strong>Conclusions</strong></p><p>  Therefore, Nb2O5 may be an alternative for polymer-based biomaterials.</p><p> <strong> Clinical significance:</strong></p><p>  Niobium pentoxide could be used to produce adhesive resins with enhanced properties. </p><hr><p></p><p> <strong>Source: </strong>Journal of Dentistry</p><p> <a href="http://www.jodjournal.com/article/S0300-5712(12)00117-0/abstract" target="_blank"><font color="#0000ff">Full Text</font></a></p> Niobium pentoxide, Dentine bonding agents, Composite resins 0 0 http://idai.ir/browse.php?a_code=A-10-32-2102&slc_lang=fa&sid=1 Vicente Castelo Branco Leitune 10031947532846009848 10031947532846009848 Yes Dental Materials Laboratory, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil Fabrício Mezzomo Collares 10031947532846009849 10031947532846009849 No Dental Materials Laboratory, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil Antonio Takimi 10031947532846009850 10031947532846009850 No Laboratory of Ceramic Materials, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil Ginia Brito de Lima 10031947532846009851 10031947532846009851 No Institute of Chemistry, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil César Liberato Petzhold 10031947532846009852 10031947532846009852 No Institute of Chemistry, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil Carlos Pérez Bergman 10031947532846009853 10031947532846009853 No Laboratory of Ceramic Materials, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil Susana Maria Werner Samuel 10031947532846009854 10031947532846009854 No Dental Materials Laboratory, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil