A5066414920- Dental materials and restorations
- Dental Erosion and Treatment
- Endodontics and Root Canal Treatments
- Dental Research and COVID-19
- Dental Health and Care Utilization
- Laser Applications in Dentistry and Medicine
- Dental Implant Techniques and Outcomes
- Dental Anxiety and Anesthesia Techniques
- Orthodontics and Dentofacial Orthopedics
- Dental Trauma and Treatments
- Particle Detector Development and Performance
- Dental Radiography and Imaging
- Oral microbiology and periodontitis research
- Bone Tissue Engineering Materials
- Radiation Detection and Scintillator Technologies
- Additive Manufacturing and 3D Printing Technologies
- Health, Nursing, Elderly Care
- Particle physics theoretical and experimental studies
- Temporomandibular Joint Disorders
- Microwave Engineering and Waveguides
- Occupational health in dentistry
- Youth, Drugs, and Violence
- Photopolymerization techniques and applications
- High-Energy Particle Collisions Research
- Material Properties and Applications
Universidade Estadual Paulista (Unesp)
2015-2024
Secretaria do Meio Ambiente
2012-2015
Universidade Estadual de Campinas (UNICAMP)
2015
Universidade de São Paulo
2014
Fundação de Apoio à Universidade Federal de São Paulo
2013
National Institute for Space Research
2012
Prefeitura Municipal de Campos dos Goytacazes
2010
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati
2005-2009
Sapienza University of Rome
2006-2007
To evaluate the influence of pH on bleaching effect hydrogen peroxide chromogen agents.Hydrogen 50% was mixed with red wine or an alcoholic solution tobacco in glass cuvettes, resulting final concentrations 16.97% and 21.12%, respectively. The this mixture measured adjusted 3.3 M HCl 2.5 NaOH to obtain values 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0. After mixing, color these solutions evaluated a reflectance spectrophotometer; readings were repeated after 10 minutes for 20 solution. Ten samples...
SUMMARY Objectives People increasingly desire tooth whitening. Considering the wide range of whitening products on market, this study evaluated efficacy toothpastes and mouth rinses compared with 10% carbamide peroxide (CP) gel. Methods We obtained 120 cylindrical specimens from bovine teeth, which were darkened for 24 hours in a coffee solution. The color measurement was performed by spectrophotometer using CIE L*a*b* system, divided into six groups according to use following agents: group...
The mineral and organic phases of mineralized dentin contribute co-operatively to its strength toughness. This study tested the null hypothesis that there is no difference in nano-dynamic mechanical behavior (complex modulus-E*; loss modulus-E′′; storage modulus-E′; GPa) hybrid layers (baseline: E*, 3.86 ± 0.24; E′′, 0.23 0.05; E′, 3.85 0.24) created by an etch-and-rinse adhesive presence or absence biomimetic remineralization after vitro aging. Using scanning probe microscopy analysis, we...
The aim of this study was to investigate the effect hydrogen peroxide gels with different concentrations (20%, 25%, 30%, and 35%) on enamel Knoop microhardness (KNH) as well changes in dental color (C).Cylindrical specimens enamel/dentin (3-mm diameter 2-mm thickness) were obtained from bovine incisors randomly divided into six groups (n=20), according concentration whitening gel 35%, control, thickener). After polishing, initial values KNH0 measurement, assessed by spectrophotometry using...
PURPOSE : The aim of this study was to investigate the staining behavior demineralized enamel infiltrated by low-viscosity resin. METHODS AND MATERIALS Bovine enamel/dentin cylindrical samples (3 × 2 mm) were assigned into four groups (n=45) according treatment: sound (control), demineralization + artificial saliva, daily application 0.05% NaF, resin infiltration (Icon, DMG). Artificial white spot lesions produced in with demineralization. After treatments, color assessed spectrophotometry,...
Objective: This study evaluated the effect of food-simulating media associated with brushing and coffee staining on color stability different composite resins.Materials methods: Eighty specimens were prepared for each composite: Grandio SO (Voco), Amaris Filtek Z350XT (3M/ESPE), P90 (3M/ESPE). They divided into four groups according to 7 days: artificial saliva (control), heptane, citric acid ethanol. The surface was submitted 10,950 cycles (200 g load) in an automatic toothbrushing machine....
Nanocomposites created with polycarboxylic acid alone as a stabilization agent for prenucleation clusters-derived amorphous calcium phosphate exhibit nonperiodic apatite deposition. In the present study, we report use of inorganic polyphosphate biomimetic analog matrix phosphoprotein directing poly(acrylic acid)-stabilized nanoprecursor phases to assemble into periodic apatite-collagen nanocomposites. The sorption and desorption characteristics sodium tripolyphosphate type I collagen were...
A chelate-and-rinse extrafibrillar calcium chelation dentin bonding concept has recently been developed and investigated for its effectiveness in improving resin-dentin by bridging the gap between wet dry bonding. The objective of present study was to evaluate gelatinolytic activity hybrid layers (HLs) created using technique. Gelatinolytic within HL examined situ zymography confocal laser-scanning microscopy after 24-h storage or thermomechanical cycling. Dentin specimens were bonded with...
Objective. To evaluate the effectiveness of color change hybrid light-emitting diode (LED) and low-intensity infrared laser devices for activating dental bleaching to verify occurrence a regression with time. Material methods. A total 180 specimens obtained from human premolars were immersed in coffee solution 15 days darkening then divided into eight experimental groups (n = 20 each) as follows: G1, without light; G2, halogen G3, blue LED (1000 mW/470 nm) device (120 mW/795 simultaneously;...
PURPOSE To evaluate the influence of previous acid etching on bond strength a self-etch universal adhesive system sound and eroded enamel dentin. MATERIALS AND METHODS Flat dentin surfaces were obtained from bovine incisors (n = 44) divided into two groups according to exposure erosive conditions: (without erosion) (after challenge with 0.3% citric acid, pH 2.6, 5 min, 4x/day, 5 days). Each group was then subgroups (n = 11) application or not 37% phosphoric before applying adhesive. Single...
This study aimed to compare the aesthetic properties of posterior composite restorations made with a multishade (MS) or single-shade (SS) material. For that, 23 extracted human molars were used. The shade determination was performed, and occlusal anatomy registered by custom-made stamp. Then, class I preparations made, each tooth restored twice, using two different composites MS/opacity layering material (Admira Fusion—Voco) an SS/opacity bulk-fill Fusion X-tra—Voco). After finishing first...
Univ Estadual Paulista, Sch Dent, Dept Restorat Dent & Endodont, BR-12245000 Sao Jose Dos Campos, SP, Brazil
Purpose To assess the influence of variations in application technique self-etching adhesive systems on bond strength to enamel. Materials and methods One hundred thirty bovine teeth were used divided into 13 groups. The embedded acrylic resin, ground until a flat enamel area was exposed, polished with 600-grit abrasive paper. Up Bond F, Clearfil SE Bond, Self & Etch used, conventional Magic acid etching as control group. or two layers actively passively applied. Composite cylinders made...
<ns4:p><ns4:bold>Background:</ns4:bold>The purpose of this study was to evaluate the effect different bonding agents on bond-strength demineralized enamel after remineralizing treatments and resin infiltration.</ns4:p><ns4:p><ns4:bold>Methods:</ns4:bold>Buccal 120 bovine incisors polished then were divided into five experimental groups: SE (sound enamel); DE (demineralized AS immersed in artificial saliva for eight weeks); NaF treated with 0.05% sodium fluoride solution (one minute) Ic...
Radiotherapy induces a higher level of Candida spp. colonization, resulting in oral candidiasis. This study aimed to evaluate the phototransformation potential glycolic extract Curcuma longa (C. longa); antifungal activity C. longa, curcumin, and photodynamic therapy (aPDT) with blue light-emitting diodes "LED" on albicans tropicalis vitro; toxicity curcumin Galleria mellonella model. In order confirm light absorption capacity extract, its was evaluated. The effect aPDT evaluated over...
This study evaluated the prevalence of chewing side preference (CSP) in deciduous, mixed and permanent dentitions.Three-hundred subjects were divided three groups (n = 100): Group 1 - children with deciduous dentition; group 2-children 3 dentition. The CSP was determined using a direct method (visual observation) developed by McDonnell et al. (2004). Descriptive statistic used to observe CSP. Pearson's Chi-square investigate signicant associations between gender, presence preferred...