A5035808393- Dental materials and restorations
- Dental Erosion and Treatment
- Dental Anxiety and Anesthesia Techniques
- Dental Research and COVID-19
- Laser Applications in Dentistry and Medicine
- Additive Manufacturing and 3D Printing Technologies
- Dental Implant Techniques and Outcomes
- Building materials and conservation
- Orthodontics and Dentofacial Orthopedics
- Recycling and utilization of industrial and municipal waste in materials production
- Bone Tissue Engineering Materials
- Academic Research in Diverse Fields
- Cultural Heritage Materials Analysis
- Advanced Surface Polishing Techniques
- Thermography and Photoacoustic Techniques
- Concrete Corrosion and Durability
- Innovations in Concrete and Construction Materials
- Glass properties and applications
- Education during COVID-19 pandemic
- Advanced ceramic materials synthesis
- Concrete and Cement Materials Research
- Antimicrobial agents and applications
- Chemistry Education and Research
- Polymer Nanocomposites and Properties
- Dental Trauma and Treatments
Universidade de São Paulo
2015-2024
Universidade Federal do Rio Grande do Norte
2023
Universidade Federal do Agreste de Pernambuco
2022
Universidade Federal de Pernambuco
2022
Instituto Butantan
2020
Instituto Politécnico de Lisboa
2015
Universidade Estadual da Paraíba
2015
AVM Faculdade Integrada
2015
Universidade Federal de São Carlos
2007
Universidade Estadual Paulista (Unesp)
2004
The use of composite resins in dentistry is well accepted for restoring anterior and posterior teeth. Many polishing protocols have been evaluated their effect on the surface roughness restorative materials. This study compared different systems microhybrid composites. Thirty-six specimens were prepared each $#91;Charisma (Heraeus Kulzer), Fill Magic (Vigodent), TPH Spectrum (Dentsply), Z100 (3M/ESPE) Z250 (3M/ESPE)] submitted to treatment with Enhance PoGo (Dentsply) points, sequential...
Clinical Relevance Lower depth of cure with the LED unit, compared to QTH is associated different light scattering due differences in spectral emission.
The aim of this study was to verify the influence an experimental heat treatment (170ºC/10 min) using a casting furnace on mechanical properties (hardness and flexural strength) 2 commercial direct resin composites (TPH Spectrum Filtek P60) compared indirect system (BelleGlass). Heat temperature determined after thermal characterization by thermogravimetry (TG) differential scanning calorimetry (DSC). Data analyzed ANOVA Tukey's test at 5% significance level. There statistical for main...
This study evaluated the Vickers hardness (VHN) and diametral tensile strength (DTS) of composite Z100 (3M ESPE) cured with: Quartz-Tungsten-Halogen light curing unit (QTH) (700mW/cm2- 40 s) Argon laser (1,000mW/cm2- 10 s). Specimens 2 mm depth 8 diameter were immersed for 30 days at 37°C in different storage means: water, alcohol, acetic acid, propionic acid dry (control). The DTS (n = 8) was determined with a crosshead speed 0.5 mm/min. VHN test carried out using 50 g load 60 s....
The purpose of this study was to evaluate the flexural strength a direct composite, for indirect application, that received heat treatment, with or without investment. One composite used comparison. For determination treatment temperature, thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) were performed, considering initial weight loss temperature glass transition (Tg). Then, after photoactivation (600 mW/cm² - 40 s), specimens (10 x 2 mm) heat-treated following...
ABSTRACT The aim of this study was to evaluate the influence light exposure associated with 35% hydrogen peroxide (Pola Office, SDI, Melbourne, Vic., Australia) or 15% (BriteSmile, Discus, Culver City, CA, USA) on microhardness and color changes bovine enamel. Experimental groups were Britesmile + Light (BL) (15% plasm arc; 4 × 20 minutes), No (BN) (BL, no light), Pola office (PL) (35% LED; 8 (PN) (PL, light). Color (Δ E ) CIELAB (Commission Internationale de l' Eclairage, L * a b system)...
To evaluate the influence of different surface treatments on topography, roughness, energy, and microtensile bond strength stability resin cement to lithium disilicate glass ceramic.Seventy disc-shaped specimens IPS e.max Press were divided into seven groups according treatment: NT - non-treated (control); FSil hydrofluoric acid (HF) + silane; FPSil HF phosphoric (HP) FUSil ultrasonic bath (U) FPUSil HP U MEP Monobond Etch Prime (MEP); MEPH heating. Topography roughness evaluated using a 3D...
The aim of this study was to evaluate the influence an extended use desensitizing toothpastes (DTs) on dentin bonding, microhardness and roughness. One hundred twenty bovine incisor teeth were randomly divided into four groups: G1, distilled water (WATER); G2, Colgate Total 12 (CT12); G3, Sensitive Pro-Relief (CSPR); G4, Sensodyne Repair ?αμπ; Protect (SRP). Dentin surfaces etched with 17% EDTA 2 years simulated tooth brushing (20,000 cycles) performed their surfaces. Knoop microhardness,...
To verify the color change and contrast ratio of resin composites after curing 30 days storage in water.Dentin A2 shades different light-cured dental (Vittra APS, FGM, Brazil; Z350 XT, 3M ESPE, EUA; Tetric N-Ceram, Ivoclar Vivadent, Liechtenstein, Charisma Diamond, Heraeus Kulzer, Germany) were tested. Ten rounded specimens (8 mm × 2 mm) prepared for each material. Reflectance all samples was obtained using a spectrophotometer (Minolta CM 3700d, Konica Minolta, Japan) before curing,...
To compare bond strength and failure location of lingual brackets indirectly bonded after enamel sandblasting with 27-, 50-, 90-µm aluminum oxide particles followed by 37% phosphoric acid etching.Eighty maxillary premolars were randomly divided into four equal groups according to the method surface conditioning: Group 1 (control) was etched acid, group 2, 3, 4 sandblasted particles, respectively, prior etching. Lingual using same protocol adhesive (Sondhi) in all groups. The maximum shear...
The aim of this study was to characterize a conventional and pressed porcelain for zirconia core as biaxial flexural strength (BFS), apparent fracture toughness (FT) microstructure composition, investigate the effect glaze cooling rate on BFS zirconia/porcelain bilayers. Monolayers Vita VM9 PM9 (n=15) (12 mm diameter x 1.2 thick) were prepared test (MPa). Apparent (MPa.m1/2) measured by indentation technique (n=15). t-Student performed statistical analysis. Scanning electron microscopy x-ray...
To determine the influence of two adhesion boosters on shear bond strength and failure location indirectly bonded brackets.Sixty bovine incisors were randomly divided into three groups (n = 20), their buccal faces etched using 37% phosphoric acid. In group 1 (control), brackets only Sondhi adhesive. 2 3, Enhance Adhesion Booster Assure Universal Bonding Resin, respectively, applied before bonding with Sondhi. Maximum was measured a universal testing machine, evaluated Adhesive Remnant Index...
To determine the influence on shear bond strength and failure location of four cleaning methods for orthodontic bracket custom bases.In vitro laboratory study.Eighty bovine teeth were divided at random into groups. The bases cleaned with different methods: group 1 methyl methacrylate monomer, 2 acetone, 3 50 μm aluminium oxide particles 4 detergent. brackets indirectly bonded onto Sondhi Rapid-Set self-curing adhesive. maximum required to debond was recorded. evaluated using Adhesive Remnant...
The present study evaluated the flexural strength of three composite resins recommended for direct esthetic restorations: a polyacid modified (Dyract AP), unimodal resin (Filtek Z250) and hybrid (Point 4). variation factors, apart from type resin, were light activation method water storage period. light-cured in continuous mode (40 s, 500 mW/cm2) or ramp (0-800 mW/cm2 10 s followed by 30 at 800 stored 24 hours days distilled 37 degrees C. data analyzed ANOVA Tukey test multiple comparisons...
In vitro effect of 1% theobromine addition on the physical and chemical properties conventional glass ionomer (GIC) cement was investigated. Conventional GIC (GIC-C) added to (GIC-THEO) specimens were compared regarding microhardness (n = 10), sorption 5), solubility color change fluoride release in saliva 10) amount biofilm deposition 20). Compared against GIC, adding increased (p < 0.05), while its sorption, solubility, > 0.05) remained unchanged. On other hand, Streptococcus mutans...