36 documents found, page 1 of 4
Exploring Innovations and Key Insights in Healthcare
Cortes, Arthur R. G.; Henriques, Bruno; Sarmento, Bruno; Rodrigues, Célia Fortuna; Souza, Júlio C. M.; Tiritan, Maria Elizabeth; Brito, Nuno VieiraOn behalf of the Editorial Team of Scientific Letters, we are pleased to announce the publication of the third issue. The 2024 edition of Scientific Letters presents a diverse array of research that highlights significant advancements in health, dentistry, and clinical treatments.
Comparison between tooth-derived matrix and DBBM granules on an enhanced bone h...
Cifreda, Victor; Fidalgo-Pereira, Rita; Henriques, Bruno; Teughels, Wim; Özcan, Mutlu; Souza, Júlio C. M.Purpose of the Review: The purpose of this study was to perform a scoping review on the comparison between tooth-derived matrix and demineralized bovine bone mineral (DBBM) granules for enhanced bone healing. Recent Findings: Previous studies reported micro-scale pores in dentin-matrix granules due to the remnant dentin that promote the adsorption of proteins and bioactive molecules. It should be highlighted th...
Short-pulse direct laser writing of 3Y-TZP zirconia: a superior surface modific...
Sahoo, Narayan; Carvalho, Óscar; Özcan, Mutlu; Eyüboğlu, Tan Fırat; Souza, Júlio C. M.; Silva, Filipe; Henriques, BrunoThe clinical success of zirconia-based restorations relies on surface modifications that enhance adhesion without compromising material integrity. This study evaluates Direct Laser Writing (DLW) as a non-contact, contamination-free alternative to conventional grit-blasting methods (alumina particle abrasion [SB] and silica-coated alumina treatment [SC]. Surface roughness (Ra), wettability, surface free energy (...
Fitting of different intraradicular composite posts to oval tooth root canals: ...
Fernandes, Valter; Fidalgo-Pereira, Rita; Edwards, Jane; Silva, Filipe; Özcan, Mutlu; Carvalho, Óscar; Souza, Júlio C. M.The purpose of the present study was to perform a preliminary analysis of the fitting of different fiber-reinforced composite (GFRC) posts to tooth root canals and determine the resin cement layer thickness. The following GFRC posts were assessed: bundle posts (Rebilda GTTM, VOCO, Germany), sleeve system (SAPTM, Angelus Ind, Brazil), and accessory posts (ReforpinTM, Angelus, Brazil). Twenty-four freshly extract...
Laser-texturing and traditional surface modification to improve the adhesion of...
Fernandes, Valter; Carvalho, Oscar; Silva, Filipe; Henriques, Bruno; Özcan, Mutlu; Souza, Júlio C. M.Objectives The aim of this study was to perform experimental evaluation of the synergistic effects of laser-texturing and different traditional surface modification approaches to improve the push-out bond strength of glass fiber-reinforced composite (GFRC) posts to resin-matrix cements used in endodontically treated teeth rehabilitation. Methods One hundred and ten freshly extracted mandibular single-rooted pre...
Surface modification of glass fiber-reinforced composite posts by hydrogen pero...
Fernandes, Valter; Tuttle, Camilia; Carvalho, Óscar; Henriques, Bruno; Oliveira, Antonio Pedro Novaes de; Özcan, Mutlu; Souza, Júlio C. M.On the rehabilitation of endodontic treated teeth using intraradicular retention, adhesive failures often occur between the intraradicular post and the resin-matrix cement. The main aim of this study was to conduct a scoping review on the surface modification of glass fiber-reinforced composite posts by hydrogen peroxide solutions. An electronic search was performed in the PubMed database, using combi...
Light transmittance through resin-matrix composite onlays adhered to resin-matr...
Fidalgo-Pereira, Rita; Catarino, Susana O.; Carvalho, Óscar; Veiga, Nélio; Torres, Orlanda; Braem, Annabel; Souza, Júlio C. M.OBJECTIVE: The aim of this study was to evaluate the influence of the thickness of resin-matrix composite blocks manufactured by CAD-CAM on the light transmittance towards different resin-matrix cements or flowable composites. METHODS: Sixty specimens of resin-matrix composite CAD-CAM blocks reinforced with 89 wt% inorganic fillers were cross-sectioned with 2 or 3 mm thicknesses. The specimens were conditioned ...
The impact of inorganic fillers, organic content, and polymerization mode on th...
Santos, Marcionilia; Fidalgo-Pereira, Rita; Torres, Orlanda; Carvalho, Oscar; Henriques, Bruno; Özcan, Mutlu; Souza, Júlio C. M.PURPOSE: The main aim of the present study was to carry out a scoping review on the differences in degree of conversion of monomers regarding several types resin cements, indirect restorative materials, and light-curing procedures used in dentistry. METHOD: A bibliographic review was performed on PubMed using the following search items: "degree of conversion" OR "filler" AND "resin cement" OR "inorganic cement"...
Microscopic inspection at occlusal pits and fissures sealants to enamel interfaces
Fidalgo-Pereira, Rita; Abrantes, Diana; Veiga, Nélio; Henriques, Bruno; Özcan, Mutlu; Souza, Júlio C. M.
Adhesive interface of resin-matrix composite and cements for restorative dentis...
Fidalgo-Pereira, Rita; Carvalho, Óscar Samuel Novais; Catarino, Susana Oliveira; Souza, Júlio C. M.Objective: The objective of the present study was to assess adhesive interface of resin-matrix composites for restorative dentistry. Methods: Resin-matrix composites blocks reinforced with 89 wt % of inorganic particles were sectioned in blocks with thickness of 2 and 3 mm. Different commercially available flowable resin-matrix composites and cements were assessed. The cementation of resin-matrix composites spe...