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Fluoride concentration in the top-selling Brazilian toothpastes purchased at different regions
Ricomini Filho, Ant?nio Pedro;Tenuta, Livia Maria Andaló;Fernandes, Frederico Silva de Freitas;Calvo, Ana Flávia Bissoto;Kusano, Sandro Carvalho;Cury, Jaime Aparecido;
Brazilian Dental Journal , 2012, DOI: 10.1590/S0103-64402012000100008
Abstract: to be relevant in terms of public health, widely-used toothpastes should have at least 1,000 ppm of soluble fluoride (f) concentration. thus, the concentrations of total fluoride (tf) and total soluble fluoride (tsf) in the top-selling brazilian toothpastes were evaluated. samples (n=3) from toothpastes colgate anti-cáries?, colgate total 12 clean mint?, colgate tripla a??o menta original?, colgate tripla a??o menta suave? and sorriso dentes brancos? were obtained from each of the five regions of the country. the concentrations of tf and tsf were analyzed with ion-specific electrode calibrated with f standards and the results were expressed in ppm (μg f/g). all toothpastes showed tf concentration lower than 1,500 ppm f (1,388.2 ± 25.8 to 1,483.2 ± 98.2). the tsf values were higher than 1,000 ppm f and ranged from 1,035.5 ± 61.5 to 1,221.8 ± 35.2 for calcium carbonate/monofluorophosphate-based toothpastes and from 1,455.6 ± 12.5 to 1,543.0 ± 147.3 for silica/sodium fluoride-based toothpaste. top-selling brazilian toothpastes presented available fluoride concentration to control caries regardless of the region where they are purchased.
Evaluation of the fluoride stability of dentifrices sold in Manaus, AM, Brazil
Conde, Nikeila Chacon de Oliveira;Rebelo, Maria Augusta Bessa;Cury, Jaime Aparecido;
Pesquisa Odontológica Brasileira , 2003, DOI: 10.1590/S1517-74912003000300009
Abstract: the minimum requirement for the anti-caries effect of a dentifrice is the presence of available and stable fluoride in the formulation. the concentration of available fluoride in the major dentifrices sold in brazil has been reported, but few data have been published about its stability, which is temperature-dependent. thus, the aim of this study was to evaluate the concentration and stability of fluoride in dentifrices sold in manaus, am, brazil, which is a typical tropical city. the concentrations of total fluoride, total soluble fluoride, mfp, and of insoluble fluoride of six brazilian dentifrices and an imported one were analyzed. the analyses were made when the dentifrices were purchased and during a year of storage at room temperature (28.9 ± 1.16°c) and under refrigeration (26.3 ± 0.88°c). the analyses were performed using an ion specific electrode orion 96-09. at the time of purchase, all the dentifrices analyzed showed more than 1,000 ppm (mg f-/g; w/w) of soluble fluoride. however, in most of them, this form of fluoride was not shown to be stable. the highest loss of soluble fluoride was found for storage at room temperature, reaching up to 40%. although all dentifrices comply with the brazilian guidelines with regard to the concentration of total fluoride (maximum of 0.15%), the instability of soluble fluoride observed in some of them can impair their anti-caries effect and this condition is not contemplated in the governmental rules.
Abrasive Properties of Three DifferentToothpastes
S. Shahabi,F. Pesaran,MJ. Kharazifard
Journal of Dentistry of Tehran University of Medical Sciences , 2008,
Abstract: :Objective: The main purpose of this study was to develop a simple reproducible system to compare abrasive effects of three different toothpastes.Materials and Methods: A specific mold was used to fabricate 37 samples made of po-lymethylmethacrylate. The samples were stroke by toothbrushes connected to a V8 Cross Brushing Machine in a solution of fluoridated toothpastes and distilled water. The samples were evaluated initially and also after 48 hours. The data were analyzed by one-way ANOVA test.Results: No significant differences was found among the three types of toothpastes after 25000 strokes (P=0.427).S. Shahabi, Department of Den-tal Materials, School of Den-tistry, Tehran University of Medical Sciences, Tehran, IranConclusion: All the three toothpastes presented same abrasive properties.
Evaluation of the fluoride stability of dentifrices sold in Manaus, AM, Brazil
Conde Nikeila Chacon de Oliveira,Rebelo Maria Augusta Bessa,Cury Jaime Aparecido
Pesquisa Odontológica Brasileira , 2003,
Abstract: The minimum requirement for the anti-caries effect of a dentifrice is the presence of available and stable fluoride in the formulation. The concentration of available fluoride in the major dentifrices sold in Brazil has been reported, but few data have been published about its stability, which is temperature-dependent. Thus, the aim of this study was to evaluate the concentration and stability of fluoride in dentifrices sold in Manaus, AM, Brazil, which is a typical tropical city. The concentrations of total fluoride, total soluble fluoride, MFP, and of insoluble fluoride of six Brazilian dentifrices and an imported one were analyzed. The analyses were made when the dentifrices were purchased and during a year of storage at room temperature (28.9 ± 1.16°C) and under refrigeration (26.3 ± 0.88°C). The analyses were performed using an ion specific electrode Orion 96-09. At the time of purchase, all the dentifrices analyzed showed more than 1,000 ppm (mug F-/g; w/w) of soluble fluoride. However, in most of them, this form of fluoride was not shown to be stable. The highest loss of soluble fluoride was found for storage at room temperature, reaching up to 40%. Although all dentifrices comply with the Brazilian guidelines with regard to the concentration of total fluoride (maximum of 0.15%), the instability of soluble fluoride observed in some of them can impair their anti-caries effect and this condition is not contemplated in the Governmental rules.
Determination of Alpha Particles Concentration in Toothpaste Using CR-39 Track Detector  [PDF]
Fouad A. Majeed, Inaam H. Kadhim, Ali O. Muhsen, Khalid H. Abass
Detection (Detection) , 2015, DOI: 10.4236/detection.2015.32002
Abstract: The present study focuses on determination of alpha particles concentration in different samples of toothpaste by using nuclear track detector (CR-39). Nine samples of toothpaste have been collected from local Iraqi markets in Babylon Province. These samples have been chosen according to their most commonly use in Babylon Province. The samples were kept with CR-39 detector for six weeks period and then etched by 6.25 N of NaOH solution at temperature of 60°C for 5 hours. The results of the present work show that Sample 3 (Frosty) found to have a high alpha concentration about four times compared with Sample 4 (Aquafresh) and about 2 - 3 times compared with other samples.
Effect of Discontinuation of Fluoride Intake from Water and Toothpaste on Urinary Excretion in Young Children
Carolina C. Martins,Saul M. Paiva,Jaime A. Cury
International Journal of Environmental Research and Public Health , 2011, DOI: 10.3390/ijerph8062132
Abstract: As there is no homeostatic mechanism for maintaining circulating fluoride (F) in the human body, the concentration may decrease and increase again when intake is interrupted and re-started. The present study prospectively evaluated this process in children exposed to F intake from water and toothpaste, using F in urine as a biomarker. Eleven children from Ibiá, Brazil (with sub-optimally fluoridated water supply) aged two to four years who regularly used fluoridated toothpaste (1,100 ppm F) took part in the study. Twenty-four-hour urine was collected at baseline (Day 0, F exposure from water and toothpaste) as well as after the interruption of fluoride intake from water and dentifrice (Days 1 to 28) (F interruption) and after fluoride intake from these sources had been re-established (Days 29 to 34) (F re-exposure). Urinary volume was measured, fluoride concentration was determined and the amount of fluoride excreted was calculated and expressed in mg F/day. Urinary fluoride excretion (UFE) during the periods of fluoride exposure, interruption and re-exposure was analyzed using the Wilcoxon test. Mean UFE was 0.25 mg F/day (SD: 0.15) at baseline, dropped to a mean of 0.14 mg F/day during F interruption (SD: 0.07; range: 0.11 to 0.17 mg F/day) and rose to 0.21 (SD: 0.09) and 0.19 (SD: 0.08) following F re-exposure. The difference between baseline UFE and the period of F interruption was statistically significant (p < 0.05), while the difference between baseline and the period of F re-exposure was non-significant (p > 0.05). The findings suggest that circulating F in the body of young children rapidly decreases in the first 24 hours and again increases very fast after discontinuation and re-exposure of F from water and toothpaste.
Available fluoride in toothpastes used by Brazilian children
Cury, Jaime Aparecido;Oliveira, Maria José Lages de;Martins, Carolina Castro;Tenuta, Livia Maria Andaló;Paiva, Saul Martins;
Brazilian Dental Journal , 2010, DOI: 10.1590/S0103-64402010000500003
Abstract: toothpastes should have a minimum concentration of 1000 ppm of fluoride (f) to control caries and also the active f agent must be chemically free (soluble) in the formulation. thus, the aim of this study was to evaluate the concentration of soluble f in dentifrices used by 206 brazilian children. the concentrations of total fluoride (tf), total soluble fluoride (tsf) and fluoride ion were determined. from these analyses, the concentrations of f as sodium monofluorophosphate (mfp) and % of insoluble f were calculated. f was analyzed with an ion specific electrode in duplicates. the majority of dentifrices used (96%) contained f and in 84% of them, tf concentration was according to that declared by the manufacturers. in the f-toothpastes, 78% showed tsf concentration ≥1000 ppm, varying from 422.3 to 1432.3 ppm f (mean ± sd of 1017.6 ± 239.4). these findings suggest that most dentifrices used by brazilian children present available fluoride concentration for caries control.
Novo protocolo para as a??es de saúde bucal coletiva: padroniza??o no armazenamento, distribui??o e uso do material de higiene bucal
Vilhena,Fabiano Vieira; Sales-Peres,Silvia Helena de Carvalho; Caldana,Magali de Lourdes; Buzalaf,Marília Afonso Rabelo;
Ciência & Saúde Coletiva , 2008, DOI: 10.1590/S1413-81232008000900014
Abstract: the aim of this study was to evaluate the storage and distribution of toothbrushing material for school children. twenty individuals responsible for the collective oral hygiene of school children from bauru - sp and s?o josé dos campos - sp participated in the first stage of the study, answering 2 questionnaires about five different kits for use by school children. the statistical analysis was performed using wilcoxon (p<0,05). in the second stage, the amount of toothpaste or liquid cleanser applied to the toothbrush by 178 school children aged 4 to 8 years from 2 cities from the state of s?o paulo (bauru e bariri) was weighed using a portable balance. the statistical analysis was obtained by using pearson's correlation coefficient and analysis of covariance (p <0,05). kit 5 obtained levels of satisfaction and high satisfaction when compared with the others kits (1 - 4). the school children from bauru (0,41g) used smaller amounts of toothpaste than the school children from bariri (0,48g). the average of the amount of liquid cleanser applied by the sample was 0,15g. the "drop technique" (liquid cleanser) was considered practical for dispensing a small, standardized quantity of the product. kit 5 was considered a good alternative for establishing a collective oral health protocol in the brazilian health system.
Percepción de ingesta de flúor a través del cepillado dental en ni?os colombianos
González Martínez,Farith; Carmona Arango,Luis; Díaz Caballero,Antonio;
Revista Cubana de Estomatolog?-a , 2010,
Abstract: objective: to describe the parents perception on the fluoride ingestion with the use of dental brushing in the children residents in the city of cartagena de indias. methods: study universe included al parents residents in the city above mentioned whose children were aged 1-5. sample included 420 subjects. a structural questionnaire was used headed by the participants allowing measurement of clichés related to the use of toothpastes ans brushes. also, the gender and the socioeconomic status were took into account. data were analyzed by frequency tests with 95 % ci. for statistical significance we used the x2. results: the 88 % of parents polled refers on the use of toothpaste brushing. mean age of brushing is of 2.3 years (sd= 1.6). the 46 % use toothbrush twice a day, the more used toothpaste is that of adult persons. most of polled confirms that children has ingested the toothpaste during brushing. regarding the bivariant analysis there were differences between he brushing with toothpaste and the age (p= 0.0001) and with stratus (p= 0.04). also, the type of toothpaste with age (p= 0.0001) and the quantity of toothpaste used according to age (p= 0.0001) and the stratum (p= 0.01). conclusions: on note not much favourable associated with toothpaste brushing, which may account for ingestion of significant amounts of fluoride harmful for health.
Comparing the three color pounehh tooth paste with the conventional one in preventing the formation of the microbial plaque
Ebadifar A.,Naghibi A.,Valaie N.,Ramezani GH.
Journal of Dental Medicine , 2008,
Abstract: "nBackground and Aim: Plaque control has always been important in preventive dentistry. Various methods and materials have been introduced for this purpose. Recently a three-colored tooth paste has been introduced which claims to prevent plaque formation. The aim of this study was to compare three-colored pouneh tooth paste containing triclosan with the conventional one in preventing plaque formation. "nMaterials and Methods: This was a randomized double blind cross over clinical trial which was carried out on 40 dental students of Tehran azad university in 2005. Before beginning the trial, the index of plaque was evaluated, registered and reduced to null. The subjects were randomly divided into two groups, the case group (three color tooth paste) and the control group (conventional tooth paste). The participants were asked to apply the specified tooth paste with an oral B Advantage Artica toothbrush for two weeks. After two weeks, the amount of plaque was re-registered and again reduced to null. The type of tooth paste was changed among two groups and the plaque was registered for the third time at the end of two weeks. Then the patients and assessors were not aware of the type of tooth paste in the tubes (double blind). McNamar and ManWhitney test were used. "nResults: From the 40 subjects, 4 cases were omitted due to the different reasons. The amount of initial plaque index was 88.3 12.1 which was reduced to 78.2 16.9 in the control and 74.1 19.3 in the case group. The difference between primary plaque and secondary plaque (after applying tooth paste) was significant in both case and control groups, however there was not any significant difference between two groups. "nConclusion: Based on the results of this study, there was not any significant difference between conventional and three-colored tooth paste in reducing the plaque index.
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