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Search Results: 1 - 10 of 49871 matches for " Marília Afonso Rabelo; Ramires "
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A fluoreta??o da água de abastecimento público e seus benefícios no controle da cárie dentária: cinqüenta anos no Brasil
Ramires,Irene; Buzalaf,Marília Afonso Rabelo;
Ciência & Saúde Coletiva , 2007, DOI: 10.1590/S1413-81232007000400027
Abstract: fluoridation of public water supplies is among the most important public health measures for control of dental caries. through a review of the literature, this study intends to reaffirm the importance and scope of fluoridation for caries control, as this is acknowledged as one of the most effective ways of ensuring the constant presence of fluoride in the oral cavity, which is vital for controlling caries. water fluoridation is rated as an important factor for reducing caries, meaning that it should be maintained and also monitored, ensuring adequate fluoride levels for controlling caries while avoiding dental fluorosis.
Fluoride concentration in water at the area supplied by the Water Treatment Station of Bauru, SP
Lodi, Carolina Simonetti;Ramires, Irene;Buzalaf, Marília Afonso Rabelo;Bastos, José Roberto de Magalh?es;
Journal of Applied Oral Science , 2006, DOI: 10.1590/S1678-77572006000500012
Abstract: objective: to analyze the fluoride concentration in the public water supply at the area supplied by the water treatment station of bauru and classify the samples as acceptable or unacceptable according to the fluoride concentration. material and methods: samples were collected from 30 areas at two periods, october 2002 and march 2003. the fluoride concentration in the samples was determined in duplicate, using an ion sensitive electrode (orion 9609) connected to a potentiometer (procyon, model 720). samples with fluoride concentration ranging from 0.55 to 0.84 mg f/l were considered acceptable, and those whose concentration was outside this range as unacceptable. data were analyzed by descriptive statistics. results: the fluoride concentration of the water samples varied between 0.31 and 2.01 mg f/l. nearly 56% of the samples were classified as acceptable. conclusion: the variations in fluoride concentration at the area supplied by the water treatment station reinforce the need of constant monitoring for maintenance of adequate fluoride levels in the public water supply.
Fluoride intake from regular and low fluoride dentifrices by 2-3-year-old children: influence of the dentifrice flavor
Moraes, Samanta Mascarenhas;Pessan, Juliano Pelim;Ramires, Irene;Buzalaf, Marília Afonso Rabelo;
Brazilian Oral Research , 2007, DOI: 10.1590/S1806-83242007000300008
Abstract: this study evaluated the fluoride intake from dentifrices with different fluoride concentrations ([f]) by children aged 24-36 months, as well as the influence of the dentifrice flavor in the amount of fluoride ingested during toothbrushing. thirty-three children were randomly divided into 3 groups, according to the [f] in the dentifrices: g-a (523 μgf/g), g-b (1,062 μgf/g) and g-c (1,373 μgf/g). dentifrices a and b are marketed for children, while dentifrice c is a regular product. the amount of f ingested was indirectly obtained, subtracting the amount expelled and the amount left on the toothbrush from the amount initially loaded onto the brush. the results were analyzed by anova, tukey's test and linear regression analysis (p < 0.05). children ingested around 60% of the dentifrice loaded onto the brush, but no significant differences were seen among the groups (p > 0.05). mean daily fluoride intake from dentifrice for g-a, g-b and g-c was 0.022a, 0.032a and 0.061b mg f/kg body weight, respectively (p < 0.01). there was a strong positive correlation (r = 0.86, p < 0.0001) between the amount of dentifrice used and the amount of fluoride ingested during toothbrushing. the results indicate the need for instructing children's parents and care givers to use a small amount of dentifrice (< 0.3 g) to avoid excessive ingestion of fluoride. the use of low-[f] dentifrices by children younger than 6 years also seems to be a good alternative to minimize fluoride intake. dentifrice flavor did not influence the percentage of fluoride intake.
Fluoride concentrations in industrialized beverages consumed by children in the city of Bauru, Brazil
Lodi, Carolina Simonetti;Ramires, Irene;Pessan, Juliano Pelim;Neves, Lucimara Teixeira das;Buzalaf, Marília Afonso Rabelo;
Journal of Applied Oral Science , 2007, DOI: 10.1590/S1678-77572007000300010
Abstract: the increasing consumption of juices, soft drinks and teas among children has increased significantly fluoride ingestion at the age range of risk for development of dental fluorosis. objective: the purpose of this study was to evaluate fluoride concentrations in some brands of industrialized beverages consumed by children in the city of bauru, sp, brazil. material and methods: 98 brands of beverages were analyzed, divided into 3 lots, comprising 36, 32 and 30 brands, respectively, for the first, second and third lots. fluoride concentrations were determined by hmds-facilitated diffusion, using a fluoride ion-specific electrode (orion 9409). results: fluoride concentrations ranged between 0.04 and 1.76 μg f/ml. it was observed a wide variation in fluoride concentrations among the different brands, as well as the different lots of the same brand. there was no information on fluoride concentrations on the labels of any product. conclusions: some of the products analyzed could contribute significantly to the total fluoride intake and, thus, be important risk factors for development of dental fluorosis, which indicates the need of controlling the production of these beverages with respect to fluoride concentration.
Conhecimento dos médicos pediatras e odontopediatras de Bauru e Marília a respeito de flúor
Buzalaf,Marília Afonso Rabelo; Ramires,Irene; Maria,Andréa Gutierrez; Peres,José Roberto Berber; Lauris,José Roberto Pereira;
Ciência & Saúde Coletiva , 2006, DOI: 10.1590/S1413-81232006000100029
Abstract: the aim of this study was to evaluate the knowledge of pediatric doctors and dentists, in respect to the use of fluoridated compounds. ninety-one pediatric doctors and seventy-two pediatric dentists from bauru and marília municipalities were visited. after agreeing in participating, they received a questionnaire with 22 questions. they immediately filled and returned the questionnaires. data obtained were analyzed by descriptive statistics, using absolute and relative frequencies, represented by tables. some pediatric drugs containing a combination of vitamins and fluoride are usually prescribed by pediatric doctors, while fluoride gels, varnishes and rinsing solutions are often recommended by pediatric dentists. it was not established a relationship between the knowledge of pediatric doctors and dentists regarding the sources of fluoride intake and gender, time of graduation, age, place of graduation, city and area of working (public, private area or both). the results suggest that the knowledge of pediatric doctors and pediatric dentists that work in bauru and marília, regarding the presence of fluoride in various sources of intake is insufficient and, in some cases, concerning, with respect to the prevention of dental fluorosis.
Heterocontrole da fluoreta??o da água de abastecimento público em Bauru, SP, Brasil
Ramires,Irene; Maia,Luciana Prado; Rigolizzo,Daniela dos Santos; Lauris,José Roberto Pereira; Buzalaf,Marília Afonso Rabelo;
Revista de Saúde Pública , 2006, DOI: 10.1590/S0034-89102006005000005
Abstract: objective: to assess the fluoridation of the public water supply and compare these results with previous data. methods: the study was carried out from march 2004-2005 in bauru, a city of southeastern brazil. every month, on dates established randomly, 60 water samples were collected from the 19 supply sectors of the city, totaling 737 samples. the fluoride concentration in the water samples was determined in duplicate, using an ion-specific electrode (orion 9609) coupled to a potentiometer. following analysis, the samples were classified as acceptable or unacceptable according to their fluoride concentration. descriptive statistical analysis was utilized. results: the mean fluoride concentration observed in the different collection months ranged from 0.37 to 1.00 mg/l. around 85% of the samples were classified as acceptable. conclusions: one year after implementing external control, an improvement in the water fluoridation conditions was observed in comparison with previous results obtained in the city. the implementation of water supply fluoridation monitoring by means of surveillance systems must be stimulated: this is fundamental for controlling dental caries.
Fluoridation of the public water supply and prevalence of dental fluorosis in a peripheral district of the municipality of Bauru, SP
Ramires, Irene;Olympio, Kelly Polido Kaneshiro;Maria, Andréa Gutierrez;Pessan, Juliano Pelim;Cardoso, Vanessa Eid Silva;Lodi, Carolina Simonetti;Buzalaf, Marília Afonso Rabelo;
Journal of Applied Oral Science , 2006, DOI: 10.1590/S1678-77572006000200013
Abstract: objectives: the objectives of this study were to assess the fluoride concentration in the public water supply and the prevalence of dental fluorosis in schoolchildren between 7 and 15 years old, living in a peripheral district of the municipality of bauru. material and methods: for this, fifty two water samples were collected on three different days of one week. these samples were analyzed for fluoride by means of the ion-sensitive electrode method (orion 9609) coupled to a potentiometer (procyon, model 720). in this method, 1.0 ml of tisab ii (orion) was added to 1.0 ml of the sample. for the epidemiological survey of fluorosis, 52 schoolchildren of both genders, aged between 7 and 15 were assessed, with prior authorization from their caretakers. only one person examined the children, after supervised toothbrushing and drying with cotton wool rolls. the tf index was used. results: the fluoride concentrations in the water samples ranged from 0.62 to 1.20 mg/l, with a mean of 0.9 mg/l. the prevalence of dental fluorosis was 33%, with severity ranging from tf1 to tf4 (kappa of 0.73 and concordance of 83.33%). conclusions: the results from the analysis of water samples indicated a fluoride concentration greater than recommended for bauru. the fluorosis levels found were higher than expected for a peripheral district, in which water is one of the few sources of fluoride.
Avalia??o da concentra??o de flúor e do consumo de água mineral
Ramires,Irene; Grec,Roberto Henrique da Costa; Cattan,Louren?o; Moura,Patrícia Gomes de; Lauris,José Roberto Pereira; Buzalaf,Marília Afonso Rabelo;
Revista de Saúde Pública , 2004, DOI: 10.1590/S0034-89102004000300018
Abstract: objective: considering that water is an importance source of fluoride intake, and that the consumption of mineral water and prevalence of dental fluorosis have been increasing, the aim of this study was to evaluate the consumption of mineral water and its fluoride concentration. methods: the study was performed in residential districts of the municipality of bauru, state of s?o paulo, by means of stratified sampling via clusters. each cluster corresponded to one residential block. for randomization purposes, the residential blocks were numbered within the 17 districts established by the city plan. one thousand homes were thus visited. mineral water samples were collected using previously labeled 50 ml plastic flasks. fluoride analysis was done using an ion-sensitive electrode (orion 9609), after buffering using tisab ii. information on the consumption of mineral water was obtained by means of applying a questionnaire. results: around 29.72% of the city's population was consuming mineral water. in the 260 samples analyzed from 29 different brands of water, the fluoride concentration ranged from 0.045 to 1.515 mg/l. for one brand, the label stated that the fluoride concentration was 0.220 mg/l, but analysis revealed a concentration of 1.515 mg/l. moreover, some brands did not specify the fluoride concentration on the label and, for these, the analysis showed concentrations ranging from 0.049 to 0.924 mg/l. conclusions: the results demonstrated wide variation in fluoride concentrations and reinforce the importance of the control of such waters by the sanitary surveillance agency.
Concentra??o de flúor em águas engarrafadas comercializadas no município de S?o Paulo
Grec,Roberto Henrique da Costa; Moura,Patrícia Garcia de; Pessan,Juliano Pelim; Ramires,Irene; Costa,Beatriz; Buzalaf,Marília Afonso Rabelo;
Revista de Saúde Pública , 2008, DOI: 10.1590/S0034-89102008000100022
Abstract: the objective of the study was to evaluate the fluoride concentration in bottled water available on the market, in comparison with the values printed on the bottle label. two hundred and twenty-nine water samples were collected from 35 brands available in several supermarkets, grocery stores and snack bars with high turnover in different regions of the municipality of s?o paulo, southeastern brazil, in 2006. fluoride concentrations were determined by duplicate analysis using an ion-specific electrode. the fluoride concentrations ranged from 0.01 to 2.04 mg/l, with significant differences between the values stipulated on labels and those found in the analyses. these results emphasize the importance of controls over fluoride levels in bottled water enforced by the sanitary surveillance agency.
Prevalence of dental fluorosis in Bauru, S?o Paulo, Brazil
Ramires, Irene;Pessan, Juliano Pelim;Levy, Flávia Mauad;Rodrigues, Maria Heloísa Correia;Almeida, Beatriz Sim?es de;Kato, Melissa Thiemi;Sales Peres, Silvia Helena de Carvalho;Buzalaf, Marília Afonso Rabelo;
Journal of Applied Oral Science , 2007, DOI: 10.1590/S1678-77572007000200013
Abstract: objective: to evaluate the prevalence of dental fluorosis in scholars aging 12 to 15 years old, residents in the city of bauru, state of s?o paulo, brazil. methods: 1318 volunteers were enrolled in this study and examined in 18 public schools of the state of s?o paulo. the examinations were performed in the schools' court by three dentists (with a master's degree in public health), after toothbrushing supervised by another dentist. the teeth were dried with cotton pellets and examined under natural light by visual inspection, using an explorer as recommended by the who, a plane mirror and a tongue depressor. the thylstrup-fejerskov (tf) index was used for rating fluorosis. intra and inter-examiner reproducibility was calculated and data were submitted to descriptive analysis. results: approximately 36% of the children presented dental fluorosis, of which 28% was diagnosed as tf1 while the remaining received scores between tf2 and tf4. conclusion: the prevalence of dental fluorosis in bauru is within the expected range, based on previous studies. although fluoride is an important resource for caries control, its use must be adequate to the needs of each specific population.
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