11 documents found, page 1 of 2
Experimental resin-based dual-cured calcium aluminate and calcium titanate mate...
Vieira,Fabiano Paiva; Gonini Júnior,Alcides; Piva,Evandro; Oliveira,Héllen de Lacerda; da Rosa,Wellington Luiz de Oliveira; da Silva,Adriana FernandesAbstract: This paper evaluates the physicochemical and biological properties of experimental resin-based dual-cured calcium aluminate (CA) and calcium titanate (CTi) materials for vital pulp therapy (VPT). The experimental dual-cured materials were obtained as two pastes: a) Bis-EMA 10, PEG 400, DHEPT, EDAB, camphorquinone, and butylated hydroxytoluene; and b) fluoride ytterbium, Bis-EMA 10, Bis-EMA 30, benzoyl...
Dimensional change of impression materials for dental prothesis using different...
Oliveira,Adriano Relvas Barreira de; Sinhoreti,Mário Alexandre Coelho; Amaral,Marina; Concílio,Laís Regiane da Silva; Vitti,Rafael PinoABSTRACT The aim of this study was to verify the effectiveness of alternative techniques for measuring the linear dimensional change of molds obtained by different impression materials. A stainless-steel die containing three lines was used to get the impressions. The impression materials were handled according to the manufacturers' instructions. After gelation/polymerization time, the molds (n=12) were stored f...
Light-Curing Units, Photoinitiators System, and Monomers on Physico-Mechanical ...
Prezotto,Gustavo Furlan da Silva; Lima,Weverteon Soares de; Vitti,Rafael Pino; Silva,Ariel Farias da; Sinhoreti,Mário Alexandre CoelhoABSTRACT This study evaluated the physico-mechanical properties of experimental composite resins made with different resin matrix and light-curing units. Experimental composite groups were divided according to monomers (BisGMA + TEGDMA-BT and BisGMA + BisEMA + UDMA + TEGDMA-BBUT) and photoinitiator system (camphorquinone-CQ and 1-phenyl-1,2-propanedione-PPD). A quartz tungsten halogen (QTH) or light-emitting di...
Polymerization depths of conventional and bulk fill composites photoactivated b...
Felipe,Willian Fernando; Oliveira,Weverteon Soares de; Miranda,Milton Edson; Olivieri,Karina Andréa Novaes; Vitti,Rafael Pino; Brandt,William CunhaABSTRACT The aim of this study was to evaluate the depth of cure of conventional (Filtek Z350 and Esthet-X HD) and bulk fill resins composites (Filtek bulk fill flow and SDR) using different photoactivation methods. Samples were made using five disc-shaped matrices (1 mm high and 8 mm central diameter) with interposed polyester strips. The samples were photoactivated using different methods [continuous high-irr...
Effect of Glass Fiber Post Adaptation on Push-Out Bond Strength to Root Dentin
Freitas,Thiago Lopes de; Vitti,Rafael Pino; Miranda,Milton Edson; Brandt,William CunhaAbstract The aim of this study was to evaluate the effect of different glass fiber posts (GFPs) diameters on the push-out bond strength to dentin. Forty unirradicular human teeth were endodontically treated and used for cementation of GFPs (White Post DC, FGM) with different diameters (n=10): P1 - ø 1.6 mm coronal x 0.85 mm apical; P2 - ø 1.8 mm coronal x 1.05 mm apical; P5 - ø 1.4 mm coronal x 0.65 mm apical; ...
Tooth whitening affects bond strength of adhesive systems in enamel
Lima Neto,Cantídio Francisco de; Silva,Carolina Batista da; Silva,Marcos Aurélio Bomfim da; Vitti,Rafael Pino; Zanta,Carmem Lúcia de Paiva e SilvaABSTRACT This study presents how the tooth whitening affects the bond strength and fracture type of three distinct adhesives — a conventional, a self-etching, and a universal adhesive — in enamel. Health bovine incisors were prepared by flattening the labial surface; part of these teeth was submitted to whitening treatment with a peroxide-based product (WhiteGold Office© 35%). The Single Bond©, AdheSE©, or Sing...
Pentaerythritol Tetrasalicylate in the Chemical Composition of Root Canal Sealers
Silva,Manuela Gonçalves de Souza e; Münchow,Eliseu Aldrighi; Vitti,Rafael Pino; Sinhoreti,Mário Alexandre Coelho; Piva,Evandro; Ogliari,Fabrício AuloAbstract The aim of this study was to synthesize and evaluate physicochemical properties of a new salicylate derivative in experimental calcium-based root canal sealers. Two salicylate derivatives were synthesized for the transesterification reaction of methyl salicylate with two different alcohols (1,3-butylenoglicol disalicylate-BD and pentaerythritol tetrasalicylate -PT) in molar ratio 1:3 and 1:6, respectiv...
Bond Strength of Experimental Root Canal Sealers Based on MTA and Butyl Ethylen...
Prado,Marina Carvalho; Carvalho,Nancy Kudsi de; Vitti,Rafael Pino; Ogliari,Fabrício Aulo; Sassone,Luciana Moura; Silva,Emmanuel João Nogueira LealAbstract This study investigated the bond strength of two experimental root canal sealers based on MTA and butyl ethylene glycol disalicylate: MTAe and MTAe-HA. The reference materials used for comparison were AH Plus and MTA Fillapex. Twenty human upper incisors were selected and one 1 mm slice was obtained from the cervical third of each root. On the coronal surface of each slice, four 0.9 mm wide holes were ...
Acid Etching and Surface Coating of Glass-Fiber Posts: Bond Strength and Interf...
Cecchin,Doglas; Farina,Ana Paula; Vitti,Rafael Pino; Moraes,Rafael Ratto; Bacchi,Ataís; Spazzin,Aloísio OroAbstract The aim of this study was to evaluate the bond strength of a composite resin to glass-fiber post (GFP) treated or not with phosphoric acid, silane coupling agent, and unfilled resin. GFPs were etched or not with 37% phosphoric acid and different surface coating applied: silane coupling agent, unfilled resin, or both. Composite resin blocks were built around a 4-mm height on the GFP. Unfilled resin (20 ...
Dimensional Accuracy of Stone Casts Made from Silicone-Based Impression Materia...
Vitti,Rafael Pino; Silva,Marcos Aurélio Bomfim da; Consani,Rafael Leonardo Xediek; Sinhoreti,Mário Alexandre CoelhoThe aim of this study was to measure and compare the dimensional accuracy of stone casts of a partially edentulous mandibular arch made by two condensation silicones, two addition silicones and three impression techniques (1-step putty/light-body, 2-step putty/light-body and monophase technique). A partially edentulous standard stainless steel mandibular arch cast was obtained with reference points on the perma...