15 documents found, page 1 of 2
Fluoride Concentration in SDF Commercial Products and Their Bioavailability wit...
Soares-Yoshikawa,Aline Laignier; Cury,Jaime Aparecido; Tabchoury,Cínthia Pereira MachadoAbstract The aim of this in vitro study was to determine the fluoride concentration in silver diamine fluoride (SDF) products and their bioavailability with demineralized dentine. The products evaluated (expected fluoride concentrations) were: I: Saforide 38% (45,283 ppm F); II: Advantage Arrest 38.3 to 43.2% (45,283 to 51,013 ppm F); III: Ancárie 12% (14,100 ppm F); IV: Ancárie 30% (35,400 ppm F), V: Cariestop...
Effect of iontophoresis on fluoride uptake in enamel with artificial caries lesion
Pauli,Maria Cibelle; Tabchoury,Cínthia Pereira Machado; Silva,Silas Arandas Monteiro e; Ambrosano,Gláucia Maria Bovi; Lopez,Renata Fonseca ViannaAbstract: Iontophoresis is a noninvasive technique, based on the application of a constant low-intensity electric current to facilitate the release of a variety of drugs, whether ionized or not, through biological membranes. The objective of this research was to evaluate the effect of iontophoresis using different electric current intensities on the uptake of fluoride in dental enamel with artificial caries les...
Anticaries Potential of Low Fluoride Dentifrices Found in The Brazilian Market
Ortiz,Adriana de Cássia; Tenuta,Livia Maria Andaló; Tabchoury,Cínthia Pereira Machado; Cury,Jaime AparecidoAbstract Low-fluoride (F) dentifrices (<600 µg F/g) are widely available worldwide, but evidence to recommend the use of such dentifrices, with either regular or improved formulations, is still lacking. Therefore, the aim of this study was to evaluate the anticaries potential of low-F dentifrices found in the Brazilian market, using a validated and tested pH-cycling model. Enamel blocks were selected by surface...
Effect of Fluoride Concentration on Reduction of Enamel Demineralization Accord...
Noronha,Mayara dos Santos; Romão,Dayse Andrade; Cury,Jaime Aparecido; Tabchoury,Cínthia Pereira MachadoAbstract Fluoride present in toothpaste at 1,100 µg/g is considered effective on caries control. However, under high cariogenic challenge due to increasing sugar exposure, higher fluoride concentration (5,000 µg/g) could be necessary to compensate the unbalance on caries process. This was tested in a pH-cycling regimen, which evaluated the effect of fluoride concentration relative to toothpaste on reduction of ...
Recolonization of Mutans Streptococci after Application of Chlorhexidine Gel
Vale,Glauber Campos; Cury,Altair Antoninha Del Bel; Arthur,Rodrigo Alex; Cury,Jaime Aparecido; Tabchoury,Cínthia Pereira MachadoStreptococcus mutans is specifically suppressed by intensive treatment with chlorhexidine gel, but the time for recolonization and the effect on other oral bacteria are not totally clear. In this study, recolonization of mutans streptococci was evaluated in nine healthy adult volunteers, who were highly colonized with this microorganism. Stimulated saliva was collected before (baseline) and at 1, 7, 14, 21 and ...
Effects of various hydrogen peroxide bleaching concentrations and number of app...
Berger,Sandrine Bittencourt; Soares,Luis Eduardo Silva; Martin,Airton Abrahão; Ambrosano,Gláucia Maria Bovi; Tabchoury,Cínthia Pereira MachadoAIM: To evaluate the effects of three hydrogen peroxide (HP) concentrations on enamel mineral content (MC), following three peroxide applications and using three methods to measure the MC. METHODS : Forty samples were obtained from bovine incisors and randomly divided into 4 groups (n=10). The control group remained untreated, while the experimental groups were tested for three HP concentrations (10%, 35% and 5...
Performance of digital radiography with enhancement filters for the diagnosis o...
Belém,Manuella Dias Furtado; Ambrosano,Gláucia Maria Bovi; Tabchoury,Cínthia Pereira Machado; Ferreira-Santos,Rívea Inês; Haiter-Neto,FranciscoEnhancement filters are potentially supposed to improve the diagnostic performance of digital images. Thus, the aim of this study was to compare the performance of digital radiography with and without enhancement filters for the detection of induced proximal caries lesions. The total sample consisted of 120 sound human teeth (40 premolars, 80 molars). Enamel subsurface demineralization was induced in one of the...
Genotypic and phenotypic analysis of S. mutans isolated from dental biofilms fo...
Arthur,Rodrigo Alex; Cury,Altair Antoninha Del Bel; Graner,Renata Oliveira Mattos; Rosalen,Pedro Luiz; Vale,Gláuber Campos; Leme,Adriana Franco PaesThe oral cavity harbors several Streptococcus mutans genotypes, which could present distinct virulence properties. However, little is known about the diversity and virulence traits of S. mutans genotypes isolated in vivo under controlled conditions of high cariogenic challenge. This study evaluated the genotypic diversity of S. mutans isolated from dental biofilms formed in vivo under sucrose exposure, as well ...
Evaluation of genotypic diversity of Streptococcus mutans using distinct arbitr...
Tabchoury,Cínthia Pereira Machado; Sousa,Maria Clara K.; Arthur,Rodrigo Alex; Mattos-Graner,Renata Oliveira; Del Bel Cury,Altair AntoninhaStreptococcus mutans has been considered one of the main etiological agents of dental caries and the genotypic diversity rather than its salivary counts may be considered as a virulence factor of this bacterium. For genotyping with polymerase chain reaction (PCR) with arbitrary primers, several primers have been used in order to improve complexity and specificity of amplicon patterns. Thus, the aim of this stud...
Genotypic diversity of S. mutans in dental biofilm formed in situ under sugar s...
Arthur,Rodrigo Alex; Tabchoury,Cínthia Pereira Machado; Mattos-Graner,Renata de Oliveira; Del Bel Cury,Altair A.; Leme,Adriana Franco PaesIn situ dental biofilm composition under sugar exposure is well known, but sugar effect on the genotypic diversity of S. mutans in dental biofilm has not been explored. This study evaluated S. mutans genotypic diversity in dental biofilm formed in situ under frequent exposure to sucrose and its monosaccharide constituents (glucose and fructose). Saliva of 7 volunteers was collected for isolation of S. mutans an...