13 documents found, page 1 of 2
In vitro influence of amazonian substances on the dental bleaching
Tapety, Celiane Mary Carneiro; Silvestre, Francisbênia Alves; Mota, Mara Natiere Gonçalves; Vilarouca, Laura Mayrla CandidoDue to the wide scientific divergence of results among in vitro investigations about the influence of food pigmentation on teeth staining during bleaching, this study aims to evaluate in the laboratory the effectiveness of at-home bleaching using carbamide peroxide (CP), and in-office bleaching using hydrogen peroxide (HP) applied to bovine teeth exposed to açaí and guarana energy drink during the dental whiten...
Micro-raman spectroscopy, colour stability, roughness and mass variation of rem...
Araújo, Alene Silva Melo; Flores, Paula Ramalho Franca; Feitosa, Victor Pinheiro; Valada, Lídia Audrey Rocha; Paula, Diego Martins deObjective: The aim of this study was to analyze the in vitro effect of White Wine Vinegar (WWV) on surface properties of removable partial dentures’ (RPD) components. Methods: Thirty specimens of one artificial teeth and a slab of cobalt-chromium alloy for RPDs were prepared. Specimens were distributed randomly in 3 groups (n=10): distilled water (negative control), WWV and CoregaTabs® (commercial control). Bef...
Dimensional accuracy of different impression techniques of partially edentulous...
Vitti, Rafael Pino; Feitosa, Victor Pinheiro; Bacchi, Ataís; Brandt, William Cunha; Miranda, Milton Edson; Sinhoreti, Mário Alexandre CoelhoMade available in DSpace on 2019-09-11T20:58:32Z (GMT). No. of bitstreams: 0 Previous issue date: 2017; RESUMO Objetivo: Avaliar e comparar a precisão dimensional de três técnicas de moldagem: dupla mistura, reembasamento e moldeira individual. Métodos: Um modelo metálico inferior parcialmente edêntulo foi fabricado com pontos de referência nos dentes e usado para fazer as moldagens. As distâncias ântero-poster...
Physicochemical and rheological characterization of different Carnoy's solution...
Carvalho, Francisco Samuel Rodrigues; Feitosa, Victor Pinheiro; Fonseca, Said Gonçalves da Cruz; Araújo, Thiago Dias de VasconcelosCarnoy's solution has been widely undertaken as adjunctive therapy for benign odontogenic tumors. Although its outcomes were highly investigated, little information is available regarding its mechanism of action and the role of chloroform in composition. The aim of this study was to characterize Carnoy's solution (with and without chloroform) in order to survey its physicochemical and pharmacological properties...
Chemical interaction mechanism of 10-MDP with zirconia
Nagaoka, Noriyuki; Yoshihara, Kumiko; Feitosa, Victor Pinheiro; Tamada, Yoshiyuki; Irie, Masao; Yoshida, Yasuhiro; Meerbeek, Bart Van; Hayakawa, SatoshiCurrently, the functional monomer 10-methacryloyloxy-decyl-dihydrogen-phosphate (10-MDP) was documented to chemically bond to zirconia ceramics. However, little research has been conducted to unravel the underlying mechanisms. This study aimed to assess the chemical interaction and to demonstrate the mechanisms of coordination between 10-MDP and zirconium oxide using 1 H and 31 P magic angle spinning (MAS) nucl...
Dimensional accuracy of different impression techniques of partially eden - tul...
Vitti, Rafael Pino; Feitosa, Victor Pinheiro; Bacchi, Ataís; Brandt, William Cunha; Miranda, Milton Edson; Sinhoreti, Mário Alexandre CoelhoObjective The purpose of this in vitro study was to assess and compare the dimensional accuracy of three impression techniques: 1-step putty/light-body, 2-step putty/light-body, and the monophase technique. Methods A partially edentulous standard stainless steel mandibular arch cast with reference points on the teeth was used to make the impressions. The anteroposterior and transverse distances were measured. A...
Micro-Raman vibrational Identification of 10-MDP bond to Zirconia and shear bon...
De-Paula, Diego Martins; Loguercio, Alessandro D.; Reis, Alessandra; Frota, Alessandra Reis,2 Natasha Marques; Melo, Radamés; Yoshihara, KumikoSo far, there is no report regarding the micro-Raman vibrational fingerprint of the bonds between 10-methacryloyloxy-decyl dihydrogen phosphate (10-MDP) and zirconia ceramics. Thus, the aim of this study was to identify the Raman vibrational peaks related to the bonds of 10-MDP with zirconia, as well as the influence on microshear bond strength. Micro-Raman spectroscopy was employed to assess the vibrational pe...
Cellular differentiation, bioactive and mechanicalproperties of experimental li...
Sauro, Salvatore; Babbar, Ashvin; Gharibi, Borzo; Feitosa, Victor Pinheiro; Carvalho, Ricardo Marins; Rodrigues, Lidiany Karla Azevedo; Banerjee, AvijitObjective. Materials for pulp protection should have therapeutic properties in order to stim-ulate remineralization and pulp reparative processes. The aim of this study was to evaluatethe mechanical properties, biocompatibility, cell differentiation and bioactivity of experi-mental light-curable resin-based materials containing bioactive micro-fillers.Methods. Four calcium-phosphosilicate micro-fillers were pre...
Synthesis and characterization of a newmethacrylate monomer derived from the ca...
Moreira, Madiana Magalhães; Silva, Lucas Renan Rocha da; Mendes, T alita Arrais Daniel; Santiago, Sérgio Lima; Mazzetto, Selma ElaineObjective. The aim of this study was to synthesize, to characterize and to evaluate the effectson tubular occlusion of new monomer derived from cashew nut shell liquid (CNSL), alsostudying the effects of acid challenge (AC) on dentin surfaces treated with desensitizers.Methods. The intermediary cardanol-epoxy (CNE) was synthesized through epoxidation ofCNSL, followed by synthesis of cardanol-methacrylate-epoxy ...
Dentin bonding and physicochemical properties of adhesives incorporated with ep...
Macedo, Francisco Adeilson Alves de; Souza, Nayara O.; Lemos, Marcelo Victor Sidou; Paul, Diego Martins de; Santiago, Sergio LimaThe aim was to assess dentin adhesion and physicochemical properties of experimental etch-and-rinse and self-etch adhesives doped with epigallocatechin-3-gallate (EGCG), a well-known collagen crosslinker obtained from green tea (Camellia sinensis). Experimental adhesives were prepared without (0 wt%), with 0.1 or 0.5 wt% EGCG addition. Their degree of conversion was surveyed by FTIR, and bar-shaped specimens we...