Your browser doesn't support javascript.
Mostrar: 20 | 50 | 100
Resultados 1 - 15 de 15
Filtrar
Filtros adicionais











País/Região como assunto
Intervalo de ano
1.
Ciênc. Saúde Colet ; 24(8): 2909-2922, ago. 2019. tab, graf
Artigo em Português | LILACS-Express | ID: biblio-1011878

RESUMO

Resumo Trata-se de uma revisão sistemática e metanálise para estimar e comparar as prevalências de fluorose dental em localidades brasileiras abastecidas com água tratada sem suplementação de flúor e em localidades que utilizam de água de origem subterrânea. Em dezembro de 2016 foram buscados estudos transversais em 8 bases de dados incluindo a "literatura cinzenta". As prevalências foram estimadas utilizando modelo misto de efeitos aleatórios considerando as localidades como subgrupo. A heterogeneidade entre os estudos foi avaliada através da estatística I2 e do teste Q de Cochran. Foram encontrados 1.038 registros, dos quais apenas 18 artigos preencheram os critérios de inclusão, sendo submetidos para análise. O modelo metanalítico estimou em 8,92% (IC95%:5,41% até 14,36%) a prevalência de fluorose dental em municípios com água tratada sem suplementação de flúor e em 51,96% (IC95%: 31,03% até 72,22%) em municípios abastecidos por poços artesianos. A heterogeneidade entre os estudos foi alta, I2 = 95% (p < 0,01) no primeiro subgrupo de municípios e I2 = 98% (p < 0,01) no segundo subgrupo. A prevalência foi significativamente maior (p < 0,001) em populações expostas à água de poços artesianos, indicando que a presença de flúor natural em concentrações elevadas representa um fator de risco para a ocorrência de fluorose dental.


Abstract This systematic review and meta-analysis aimed to estimate and compare the prevalences of dental fluorosis in Brazilian cities supplied with non-fluoridated water and in locations that uses groundwater. In December of 2016, cross-sectional studies were searched in eight databases, including the "grey literature". The prevalences were estimated through a mixed random effects model considering the locations as subgroups. The heterogeneity among the studies was assessed with I2 statistics and the Cochran's Q test. A total of 1038 records were found, from which only 18 articles met the inclusion criteria and were subjected to analysis. The meta-analytic model estimated a prevalence of dental fluorosis of 8.92 % (95 % CI: 5.41 % to 14.36 %) in cities supplied with non-fluoridated water, and of 51.96 % (95 % CI: 31.03 % to 72.22 %) in cities supplied by artesian wells. The heterogeneity among the studies was high: I2 = 95 % (p < 0.01) in the first subgroup of cities and I2 = 98 % (p < 0.01) in the second subgroup. The prevalence was significantly higher (p < 0.001) in populations exposed to artesian well water, indicating that the presence of natural fluoride at high concentrations represents a risk factor for the occurrence of dental fluorosis.

2.
Cien Saude Colet ; 24(8): 2909-2922, 2019 Aug 05.
Artigo em Português, Inglês | MEDLINE | ID: mdl-31389538

RESUMO

This systematic review and meta-analysis aimed to estimate and compare the prevalences of dental fluorosis in Brazilian cities supplied with non-fluoridated water and in locations that uses groundwater. In December of 2016, cross-sectional studies were searched in eight databases, including the "grey literature". The prevalences were estimated through a mixed random effects model considering the locations as subgroups. The heterogeneity among the studies was assessed with I2 statistics and the Cochran's Q test. A total of 1038 records were found, from which only 18 articles met the inclusion criteria and were subjected to analysis. The meta-analytic model estimated a prevalence of dental fluorosis of 8.92 % (95 % CI: 5.41 % to 14.36 %) in cities supplied with non-fluoridated water, and of 51.96 % (95 % CI: 31.03 % to 72.22 %) in cities supplied by artesian wells. The heterogeneity among the studies was high: I2 = 95 % (p < 0.01) in the first subgroup of cities and I2 = 98 % (p < 0.01) in the second subgroup. The prevalence was significantly higher (p < 0.001) in populations exposed to artesian well water, indicating that the presence of natural fluoride at high concentrations represents a risk factor for the occurrence of dental fluorosis.

3.
Cien Saude Colet ; 23(11): 3881-3890, 2018 Nov.
Artigo em Português | MEDLINE | ID: mdl-30427458

RESUMO

The prevalence of dissatisfaction with dental services and its association with normative and subjective oral health conditions among adult Brazilians was evaluated. This cross-sectional study used data from the last Brazilian National Oral Health Survey (SBBrasil), conducted in 2010. It was considered a representative sample of the adult Brazilian population. Data were analyzed by descriptive, univariate and multiple statistics (OR / 95% CI), with correction by the design effect. Among the 4539 adults included in the study, 614 (13.4%) reported dissatisfaction with dental services. Dissatisfaction was higher among adults who had any decayed teeth (1.61 / 1.06; 2.44), adults who were dissatisfied with their teeth and mouth (2.36 / 1.39; 4.02) and adults who had reported toothache in the previous six months (1.99 / 1.29, 3.07). The conclusion drawn was that the prevalence of dissatisfaction with dental services among Brazilian adults was low and associated to normative and subjective oral health conditions.

4.
Caries Res ; 53(1): 10-15, 2018 Jun 06.
Artigo em Inglês | MEDLINE | ID: mdl-29874637

RESUMO

It has been suggested that fluoride binding to dental biofilm is enhanced when more bacterial calcium binding sites are available. However, this was only observed at high calcium and fluoride concentrations (i.e., when CaF2 precipitation may have occurred). We assessed fluoride binding to Streptococcus mutans pellets treated with calcium and fluoride at concentrations allowing CaF2 precipitation or not. Increasing calcium concentration resulted in a linear increase (p < 0.01) in fluoride concentration only in the pellets in which CaF2 precipitated. The results suggest that CaF2 precipitation, rather than bacterially bound fluoride, is responsible for the increase in fluoride binding to dental biofilm with the increase in calcium availability.

5.
Caries Res ; 53(1): 16-23, 2018 Jun 06.
Artigo em Inglês | MEDLINE | ID: mdl-29874649

RESUMO

Extracellular polysaccharides (EPS) could increase the penetration of fluoride through dental biofilm, reducing its cariogenicity. We measured the concentration of fluoride in EPS-containing (EPS+) or not-containing (EPS-) Streptococcus mutans bacterial pellets resembling test biofilms, before and up to 60 min after a 0.05% NaF rinse in situ. Fluoride penetration and clearance were higher in EPS+ bacterial pellets. The data suggest that EPS enhances fluoride penetration, but also accelerates fluoride clearance from dental biofilms.

6.
Ciênc. Saúde Colet ; 23(11): 3881-3890, Oct. 2018. tab
Artigo em Português | LILACS-Express | ID: biblio-974755

RESUMO

Resumo Avaliou-se a prevalência da insatisfação com os serviços odontológicos e sua associação com condições normativas e subjetivas de saúde bucal entre adultos brasileiros. Trata-se de um estudo transversal que utilizou dados do inquérito nacional de saúde bucal (SB Brasil) realizado em 2010. Considerou-se uma amostra representativa da população adulta brasileira. Foram conduzidas análises descritivas, bivariadas e múltiplas (OR/IC 95%) com correção pelo efeito desenho. Dentre os 4.539 adultos incluídos, 614 (13,4%) relataram a insatisfação com os serviços odontológicos utilizados. A insatisfação foi maior entre aqueles que apresentavam algum dente cariado (1,61/1,06 ; 2,44), que estavam insatisfeitos com seus dentes e boca (2,36/1,39 ; 4,02) e que haviam relatado dor de dente nos últimos 6 meses (1,99/1,29 ; 3,07). Conclui-se que a prevalência da insatisfação com os serviços odontológicos entre adultos brasileiros foi baixa e esteve associada a condições normativas e subjetivas de saúde bucal.


Abstract The prevalence of dissatisfaction with dental services and its association with normative and subjective oral health conditions among adult Brazilians was evaluated. This cross-sectional study used data from the last Brazilian National Oral Health Survey (SBBrasil), conducted in 2010. It was considered a representative sample of the adult Brazilian population. Data were analyzed by descriptive, univariate and multiple statistics (OR / 95% CI), with correction by the design effect. Among the 4539 adults included in the study, 614 (13.4%) reported dissatisfaction with dental services. Dissatisfaction was higher among adults who had any decayed teeth (1.61 / 1.06; 2.44), adults who were dissatisfied with their teeth and mouth (2.36 / 1.39; 4.02) and adults who had reported toothache in the previous six months (1.99 / 1.29, 3.07). The conclusion drawn was that the prevalence of dissatisfaction with dental services among Brazilian adults was low and associated to normative and subjective oral health conditions.

7.
Caries Res ; 51(3): 179-187, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28222429

RESUMO

High fluoride dentifrice (FD; 5,000 ppm F) has been recommended to arrest root dentine lesions and to control enamel caries in high-risk patients. Also, standard FD (1,100 ppm F) in combination with professional fluoride application has been recommended to control dentine caries, but the effect of this combination on enamel has been considered modest. Considering the lack of evaluation comparing the use of 5,000 ppm FD (5,000-FD) versus acidulated phosphate fluoride (APF) application combined with 1,100 ppm FD (1,100-FD) on the inhibition and repair of caries lesions in both enamel and dentine, we conducted this in situ, double-blind, crossover study of 3 phases of 14 days. In each phase, 18 volunteers wore palatal appliances containing enamel and root dentine specimens, either sound or carious, to evaluate the effect of the treatments on the inhibition or repair of caries lesions, respectively. The treatments were non-FD (negative control), 5,000-FD, or 1 APF gel application on dental specimens combined with 1,100-FD used twice per day (APF + 1,100-FD). The reduction of demineralization and enhancement of remineralization were assessed by surface and cross-sectional hardness. Fluoride concentration was determined on dental specimens and on the formed biofilm. For enamel, APF + 1,100-FD and 5,000-FD did not differ regarding the inhibition of demineralization and repair of caries lesions. However, for dentine the difference between these treatments was inconclusive because while APF + 1,100-FD was more effective than 5,000-FD in caries lesion reduction and repair, 5,000-FD was more effective than APF + 1,100-FD in the reduction of surface demineralization. Therefore, the findings show that the combination of APF + 1,100-FD is as effective as 5,000-FD in enamel inhibition of demineralization and enhancement of remineralization.


Assuntos
Fluoreto de Fosfato Acidulado/farmacologia , Cariostáticos/farmacologia , Cárie Dentária/prevenção & controle , Dentifrícios/farmacologia , Fluoretos Tópicos/farmacologia , Desmineralização do Dente/prevenção & controle , Remineralização Dentária/métodos , Estudos Cross-Over , Método Duplo-Cego , Feminino , Humanos , Masculino , Propriedades de Superfície , Resultado do Tratamento , Adulto Jovem
8.
Caries Res ; 50(4): 372-7, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27355353

RESUMO

A calcium (Ca) prerinse before a fluoride (F) rinse has been shown to increase oral F levels. We tested the anticaries effect of this combination in a dose-response in situ caries model. In a double-blind, crossover experiment, 10 volunteers carried enamel slabs in palatal appliances for 14 days, during which they rinsed twice/day with one of four rinse combinations: (1) a placebo prerinse (150 mM sodium lactate) followed by a distilled water rinse (negative control); (2) a placebo prerinse followed by a 250 ppm F rinse; (3) a placebo prerinse followed by a 1,000 ppm F rinse, or (4) a Ca prerinse (150 mM Ca, as calcium lactate) followed by a 250 ppm F rinse. Sucrose solution was dripped onto the slabs 8×/day to simulate a high cariogenic challenge. The percent surface hardness loss (%SHL) was significantly lower in the Ca prerinse used with the 250 ppm F rinse group (%SHL = 38.0 ± 21.0) when compared with the F rinse alone (%SHL = 59.5 ± 24.1) and similar to the 1,000 ppm F rinse group (%SHL = 42.0 ± 18.3). Compared with the 250 ppm F rinse, the Ca prerinse increased biofilm fluid F only twice (nonsignificant). However, it greatly increased F in biofilm solids (∼22×). The Ca prerinse had little effect on loosely or firmly bound enamel F. The results showed an increased level of protection against demineralization by the use of a Ca prerinse, which seems to be caused by the enhancement of F concentration in the biofilm.


Assuntos
Cálcio/farmacologia , Cariostáticos/farmacologia , Esmalte Dentário/efeitos dos fármacos , Fluoretos Tópicos/farmacologia , Antissépticos Bucais/administração & dosagem , Desmineralização do Dente/terapia , Adolescente , Adulto , Animais , Biofilmes/efeitos dos fármacos , Cálcio/administração & dosagem , Cariostáticos/administração & dosagem , Bovinos , Estudos Cross-Over , Esmalte Dentário/patologia , Relação Dose-Resposta a Droga , Método Duplo-Cego , Fluoretos Tópicos/administração & dosagem , Humanos , Antissépticos Bucais/farmacologia , Saliva/efeitos dos fármacos , Lactato de Sódio/administração & dosagem , Lactato de Sódio/farmacologia , Sacarose/efeitos adversos , Fatores de Tempo , Desmineralização do Dente/etiologia
9.
Caries Res ; 50(2): 133-40, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26992247

RESUMO

The clinical relevance of the frequency of fluoride dentifrice (FD) use on enamel caries is based on evidence. However, the relative effect of FD on reduction of demineralization or enhancement of remineralization is unknown and the effect of frequency on root dentine caries has not been explored. The aim of this double-blind, crossover, in situ study, which was conducted in 4 phases of 14 days each, was to evaluate the relationship between the frequency of FD use and enamel and root dentine de- and remineralization. Eighteen volunteers wore palatal appliances containing enamel and root dentine slabs, either sound or carious. Biofilm accumulation on the slab surface was allowed, and 20% sucrose solution was dripped 3 or 8 times per day on the carious and sound slabs, respectively. Volunteers used FD (1,100 µg F/g) in the frequencies 0 (fluoride-placebo dentifrice), 1, 2 and 3 times per day. The demineralization and remineralization that occurred in sound or carious slabs was estimated by the percentage of surface hardness loss (%SHL) or recovery (%SHR). Loosely (CaF2) and firmly (FAp) bound fluoride concentrations were also determined. The relationship between the variables was analyzed by linear regression. The %SHL, CaF2 and FAp concentrations were a function of the frequency of FD use for enamel and dentine, but the %SHR was a function of the frequency of FD use only for enamel (p < 0.05). The results suggest that demineralization in enamel and root dentine is reduced in proportion to the frequency of FD use, but for remineralization the effect of the frequency of FD use was relevant only to enamel.


Assuntos
Cariostáticos/administração & dosagem , Cárie Dentária/tratamento farmacológico , Fluoretos/administração & dosagem , Fosfatos/administração & dosagem , Desmineralização do Dente/prevenção & controle , Remineralização Dentária , Cremes Dentais/administração & dosagem , Adolescente , Adulto , Biofilmes/efeitos dos fármacos , Cariostáticos/farmacologia , Estudos Cross-Over , Cárie Dentária/patologia , Esmalte Dentário/efeitos dos fármacos , Esmalte Dentário/patologia , Dentina/efeitos dos fármacos , Dentina/patologia , Método Duplo-Cego , Dureza , Humanos , Sacarose/administração & dosagem , Fatores de Tempo , Cremes Dentais/farmacologia
10.
Rev. Assoc. Paul. Cir. Dent ; 69(3): 248-251, Jul.-Set. 2015. ilus, tab
Artigo em Português | LILACS, BBO - Odontologia | ID: biblio-874869

RESUMO

Dentifrício fluoretado deve conter pelo menos 1.000 ppm (mg F/kg) do seu flúor total (FT) na forma quimicamente solúvel (FST) para ter o potencial máximo de interferir com o processo de cárie. Em formulações de dentifrícios contendo cálcio no abrasivo, a concentração de FST (íon flúor + íon MFP) diminui em função do tempo de armazenamento. Os quatro dentifrícios a base de MFP/CaCO3 mais vendidos no Brasil são capazes de manter 1.000 ppm de FST nos produtos pelo prazo de um ano de fabricação, mas não é conhecido o que ocorre até o final do prazo de validade. Assim, o objetivo deste estudo foi avaliar a concentração de FST nesses dentifrícios ao final do seu prazo de validade. Após as análises iniciais realizadas em 2010, os cremes dentais (n=30) foram armazenados à temperatura laboratorial (25°C) e as concentrações de FT e FST foram novamente determinadas em 2012, próximo a data de vencimento (36 meses). As análises foram feitas utilizando protocolo validado de extração, as determinações foram feitas com eletrodo íon específico e os resultados expressos em ppm F (mg F/kg). A concentração (média±dp;n=30) de FT encontrada (1.415,2±62,8) estava de acordo com o declarado pelo fabricante (1.450 ppm F), porém a de FST foi 44% menor (814,7±74,7). Ao final do prazo de validade, os dentifrícios brasileiros mais vendidos não mantêm uma concentração de FST máxima desejável, mostrando tanto a importância do Cirurgião-Dentista na orientação do paciente como a necessidade da revisão da resolução Anvisa nº 79 que regulamenta a matéria sobre dentifrícios


Fluoride toothpaste should contain at least 1,000 ppm (mg F/kg) of fluoride chemically soluble to have the maximum potential to interfere with the caries process. In formulations containing calcium--based abrasives, the concentration of total soluble fluoride (TSF = fluoride ion + MFP ion) decreases according to the storage time. The four MFP/CaCO3-based toothpastes most consumed in Brazil are able to maintain 1,000 ppm of TSF throughout one year of manufacturing, but it is not known if it would be maintained up to the expiration date. Thus, this study evaluated the concentration of TSF in these toothpastes at the end of expiration date. As control, the total fluoride (TF) concentration was also determined. After the analysis of fresh samples conducted in 2010, the toothpastes tube (n=30) were stored at temperature of 25°C and the determinations of TF and TSF concentrations were again assessed in 2012, close to the expiration date of the toothpastes (3 years). The analyses were made using a validated protocol of extraction, the determinations were made with an ion specific electrode and the results were expressed in ppm F (mg F/kg). The concentration (mean±SD;n=30) of TF found (1.415.2±62.8) was according to the declared by the manufacturer (1.450 ppm), but the TSF was 44% lower (814.7±74.7). At expiration, the most sold MFP/CaCO3-based brazilian toothpastes do not maintain the maximum TSF concentration required, showing not only the relevance of the Dentist to advise the patients about this subject, but also the necessity to review the Brazilian regulation about toothpastes


Assuntos
Cárie Dentária/diagnóstico , Compostos de Flúor/síntese química , Cremes Dentais/administração & dosagem , Cremes Dentais/síntese química , Dentifrícios/administração & dosagem , Dentifrícios/síntese química , Dentifrícios/uso terapêutico , Flúor/administração & dosagem , Flúor/uso terapêutico
11.
Rev. Assoc. Paul. Cir. Dent ; 69(3): 248-251, Jul.-Set. 2015.
Artigo em Português | LILACS, BBO - Odontologia | ID: lil-792079

RESUMO

Dentifrício fluoretado deve conter pelo menos 1.000 ppm (mg F/kg) do seu flúor total (FT) na forma quimicamente solúvel (FST) para ter o potencial máximo de interferir com o processo de cárie. Em formulações de dentifrícios contendo cálcio no abrasivo, a concentração de FST (íon flúor + íon MFP) diminui em função do tempo de armazenamento. Os quatro dentifrícios a base de MFP/CaCO3 mais vendidos no Brasil são capazes de manter 1.000 ppm de FST nos produtos pelo prazo de um ano de fabricação, mas não é conhecido o que ocorre até o final do prazo de validade. Assim, o objetivo deste estudo foi avaliar a concentração de FST nesses dentifrícios ao final do seu prazo de validade. Após as análises iniciais realizadas em 2010, os cremes dentais (n=30) foram armazenados à temperatura laboratorial (25°C) e as concentrações de FT e FST foram novamente determinadas em 2012, próximo a data de vencimento (36 meses). As análises foram feitas utilizando protocolo validado de extração, as determinações foram feitas com eletrodo íon específico e os resultados expressos em ppm F (mg F/kg). A concentração (média±dp;n=30) de FT encontrada (1.415,2±62,8) estava de acordo com o declarado pelo fabricante (1.450 ppm F), porém a de FST foi 44% menor (814,7±74,7). Ao final do prazo de validade, os dentifrícios brasileiros mais vendidos não mantêm uma concentração de FST máxima desejável, mostrando tanto a importância do Cirurgião-Dentista na orientação do paciente como a necessidade da revisão da resolução Anvisa nº 79 que regulamenta a matéria sobre dentifrícios.


Fluoride toothpaste should contain at least 1,000 ppm (mg F/kg) of fluoride chemically soluble to have the maximum potential to interfere with the caries process. In formulations containing calcium-based abrasives, the concentration of total soluble fluoride (TSF = fluoride ion + MFP ion) decreases according to the storage time. The four MFP/CaCO3-based toothpastes most consumed in Brazil are able to maintain 1,000 ppm of TSF throughout one year of manufacturing, but it is not known if it would be maintained up to the expiration date. Thus, this study evaluated the concentration of TSF in these toothpastes at the end of expiration date. As control, the total fluoride (TF) concentration was also determined. After the analysis of fresh samples conducted in 2010, the toothpastes tube (n=30) were stored at temperature of 25°C and the determinations of TF and TSF concentrations were again assessed in 2012, close to the expiration date of the toothpastes (3 years). The analyses were made using a validated protocol of extraction, the determinations were made with an ion specific electrode and the results were expressed in ppm F (mg F/kg). The concentration (mean±SD;n=30) of TF found (1.415.2±62.8) was according to the declared by the manufacturer (1.450 ppm), but the TSF was 44% lower (814.7±74.7). At expiration, the most sold MFP/CaCO3-based brazilian toothpastes do not maintain the maximum TSF concentration required, showing not only the relevance of the Dentist to advise the patients about this subject, but also the necessity to review the Brazilian regulation about toothpastes.


Assuntos
Cremes Dentais , Dentifrícios , Compostos de Flúor , Cárie Dentária , Flúor
12.
Rev. bras. ciênc. saúde ; 15(1): 3-10, 2011. ilus, tab
Artigo em Português | LILACS | ID: lil-789722

RESUMO

Avaliar o pH, a quantidade de Sólidos SolúveisTotais (°Brix), condutividade elétrica e a superfície do esmaltebovino submetido à ação de bebidas gaseificadas de baixacaloria, em Microscopia Eletrônica de Varredura (MEV).Material e Métodos: Os produtos utilizados foram: AquariusFresh® limão, H2OH!® limão, Aquazero® limão, Viver light® limão,Coca-cola® (controle positivo) e água deionizada (controlenegativo). A avaliação do pH foi realizada mediante o uso dephmetro digital, a condutividade elétrica foi determinada pormeio de um condutivímetro de bancada e para a quantificaçãodo °Brix utilizou-se um refratômetro específico de campo.Para cada análise foram feitas três aferições e calculou-se amédia aritmética. A superfície adamantina foi confeccionada apartir da exodontia de incisivos hígidos de maxilares bovinos deanimais destinados ao abate, obtendo-se ao final, blocos deesmalte de 3x3mm (n=12) que foram submetidos ao contatopor 5 minutos com as bebidas e em seguida lavados earmazenados para posterior análise em MEV. Resultados: Osvalores de pH variaram de 2,56 (controle positivo) a 6,00 (controlenegativo), estando as demais bebidas abaixo do pH 3,46. Osresultados para condutividade elétrica variaram de 001 mS.cm–1 (controle negativo) a 1071 mS.cm–1 (Coca-Cola®). Com relaçãoaos °Brix, todas as bebidas, com exceção da Coca-Cola®(6,5°Brix) tiveram valor 0°Brix. Observou-se que as bebidasanalisadas revelaram-se potencialmente erosivas. A superfíciedo esmalte exposto às bebidas gaseificadas apresentoucaracterísticas microestruturais indicativas de erosão.Conclusão: As bebidas gaseificadas analisadas se revelarampotencialmente erosivas para a superfície adamantina exposta,por um curto período de tempo, à ação destes produtos, nãoapresentando potencial cariogênico...


To evaluate the pH, the amount of total solublesolids (°Brix), electrical conductivity and the surface of bovineenamel, by Scanning Electronic Microscopy (SEM), subjectedto the action of low-calorie soft drinks. Materials andMethods: The products tested were: Aquarius® Fresh lemon,H2OH!® lemon, Aquazero® lemon, Viver Light® lemon, Coca-Cola® (positive control) and deionized water (negativecontrol). The pH evaluation was performed by using digitalpH meter. Electrical conductivity was determined by aworkbench conductivimeter and for quantification of °Brixwas used a specific refractometer of field. For each analysiswere made three measurements and the arithmetic meanwas calculated. The adamantine surface was made fromthe extraction of healthy maxillary incisors from bovineanimals for slaughter, resulting in the end, in 3x3mm enamelblocks (n = 12), which were submitted to contact for 5 minuteswith the drinks and then washed and stored for subsequentanalysis by SEM. Results: The pH values †ranged from 2.56(positive control) to 6.00 (negative control), while theremaining beverages showed pH bellow than 3.46. Theresults for electrical conductivity ranged from 001 mS.cm-1(negative control) to 1071 mS.cm- (Coca-Cola®). Consideringthe TSS, all beverages had a value of 0° Brix, exceptingCoca-Cola® (6.5° Brix). It was observed that the beveragesanalyzed proved to be potentially erosive. The enamel surfaceexposed to fizzy drinks had microstructural featuresindicative of erosion. Conclusion: Fizzy drinks analyzed haveproved to be potentially erosive for the adamantine surfaceexposed for a short period of time to the action of thoseproducts, presenting no cariogenic potential...


Assuntos
Animais , Bovinos , Bebidas Gaseificadas/análise , Dieta , Erosão Dentária , Ingestão de Líquidos
13.
Rev. bras. ciênc. saúde ; 15(1): 3-10, 2011. tab, ilus
Artigo em Português | LILACS | ID: lil-609211

RESUMO

Objetivo: Avaliar o pH, a quantidade de Sólidos Solúveis Totais (°Brix), condutividade elétrica e a superfície do esmalte bovino submetido à ação de bebidas gaseificadas de baixa caloria, em Microscopia Eletrônica de Varredura (MEV). Material e Métodos: Os produtos utilizados foram: Aquarius Fresh® limão, H2OH!® limão, Aquazero® limão, Viver light® limão, Coca-cola® (controle positivo) e água deionizada (controle negativo). A avaliação do pH foi realizada mediante o uso de phmetro digital, a condutividade elétrica foi determinada por meio de um condutivímetro de bancada e para a quantificação do °Brix utilizou-se um refratômetro específico de campo. Para cada análise foram feitas três aferições e calculou-se a média aritmética. A superfície adamantina foi confeccionada a partir da exodontia de incisivos hígidos de maxilares bovinos de animais destinados ao abate, obtendo-se ao final, blocos de esmalte de 3x3mm (n=12) que foram submetidos ao contato por 5 minutos com as bebidas e em seguida lavados e armazenados para posterior análise em MEV. Resultados: Os valores de pH variaram de 2,56 (controle positivo) a 6,00 (controle negativo), estando as demais bebidas abaixo do pH 3,46. Os resultados para condutividade elétrica variaram de 001mS.cm -¹ (controle negativo) a 1071 mS.cm -¹ (Coca-Cola® ). Com relação aos °Brix, todas as bebidas, com exceção da Coca-Cola® (6,5°Brix) tiveram valor 0°Brix. Observou-se que as bebidas analisadas revelaram-se potencialmente erosivas. A superfície do esmalte exposto às bebidas gaseificadas apresentou características microestruturais indicativas de erosão. Conclusão: As bebidas gaseificadas analisadas se revelaram potencialmente erosivas para a superfície adamantina exposta, por um curto período de tempo, à ação destes produtos, não apresentando potencial cariogênico.


Objective: To evaluate the pH, the amount of total soluble solids (°Brix), electrical conductivity and the surface of bovine enamel, by Scanning Electronic Microscopy (SEM), subjected to the action of low- calorie soft drinks. Materials and Methods: The products tested were: Aquarius® Fresh lemon, H2OH!® lemon, Aquazero® lemon, Viver Light®lemon, CocaCola® (positive control) and deionized water (negative control). The pH evaluation was performed by using digital pHmeter. Electrical conductivity wa s determined by a workbench conductivimeter and for quantification of °Brix was used a specific refractometer of . For each analysis were made three measurements and the arithmetic mean was calculated. The adamantine surface was made from the extraction of healthy maxillary incisors from bovine animals for slaughter, resulting in the end, in 3x3mm enamel blocks (n = 12), which were submitted to contact for 5 minutes with the drinks and then washed and stored for subsequent analysis by SEM. Results: The pH values tranged from 2.56 (positive control) to 6.00 (negative control), while the remaining beverages showed pH bellow than 3.46. The results for electrical conductivity ranged from 001 mS.cm-¹ (negative control) to 1071 mS.cm- (Coca-Cola®). Considering the TSS, all beverages had a value of 0° Brix, excepting Coca-Cola® (6.5° Brix). It was observed that the beverages analyzed proved to be potentially erosive. The enamel surface exposed to fizzy drinks had microstructural features indicative of erosion. Conclusion: Fizzy drinks analyzed have proved to be potentially erosive for the adamantine surface exposed for a short period of time to the action of those products, presenting no cariogenic potential.


Assuntos
Erosão Dentária , Odontologia , Bebidas Gaseificadas
14.
Rev. odontol. UNESP (Online) ; 39(2): 69-74, abr. 2010. tab
Artigo em Português | LILACS, BBO - Odontologia | ID: biblio-874369

RESUMO

O crescente consumo de bebidas açucaradas e com pH ácido tem sido considerado um fator de risco para o desenvolvimento de lesões nas superfícies dentais. Dessa forma, o objetivo deste estudo foi avaliar o pH, a condutividade elétrica e a quantidade de Sólidos Solúveis Totais (SST) de bebidas gaseificadas comercializadas na cidade de João Pessoa - PB. Constituíram a amostra os produtos Aquarius Regular®, Aquarius Fresh® limão, H2OH!® limão, H2OH!® limão e tangerina, Aquazero® limão, Água Mineral Schincariol® com gás, Água Tônica Antárctica® (controle positivo) e Água Mineral Schincariol® sem gás (controle negativo). A avaliação do pH foi realizada mediante o uso de pHgâmetro digital, modelo pH 300, da marca Analyser®. A condutividade elétrica foi determinada por um condutivímetro de bancada modelo 600 da Analyser®. Para a quantificação dos Sólidos Solúveis Totais ou °Brix, utilizou-se um refratômetro específico de campo, modelo N1, Atago®. Os valores de pH variaram de 2,85(controle positivo) a 6,41(controle negativo), estando as demais bebidas abaixo do pH 3,85. Os resultados para condutividade elétrica variaram de 81 mS.cm–1 (controle negativo) a 1.004 mS.cm-1 (H2OH!® limão e tangerina). Com relação aos SST, todas as bebidas, com exceção da Água Tônica Antárctica® (7,5 °Brix), tiveram valor 0 °Brix. Com base na metodologia adotada e nos resultados obtidos, observou-se que as bebidas analisadas neste estudo revelaram-se potencialmente erosivas.


The increasing consumption of sugar beverages and with acidic pH has been considered a factor of risk for the development of injuries in dental surfaces. Therefore, the objective of this study was to evaluate the pH, the electrical conductivity and the amount of Total Soluble Solids (SST) of carbonated beverages commercialized in the city of João Pessoa - PB. The sample was formed by the following products Aquarius Regular®, Aquarius Fresh® lemon, H2OH!® lemon, H2OH!® lemon and tangerine, Aquazero® lemon, Sparkling Mineral Water Schincariol®, Antartic Tonic Water® (positive control) and Still Mineral Water Schincariol® (negative control). The evaluation of pH was performed by the use of a digital pH meter, model pH 300, brand Analyser®. The electrical conductivity was determined by a bench conductivimeter, model 600 of the Analyzer®. For the quantification of Total Soluble Solids or °Brix was used a specific refractometer of , model N1, Atago®. The pH values varied from 2.85 (positive control) to 6.41 (negative control), and the other beverages had pH below 3.85. The results for electrical conductivity varied from 81 mS.cm?1 (negative control) to 1,004 mS.cm?1 (H2OH!® lemon and tangerine). About the SST, all the beverages, except the Antarctic Tonic Water® (7.5 °Brix) had value 0 °Brix. Based on the methodology adopted and the results obtained, it was observed that the beverages analyzed in this study proved to be potentially erosive.


Assuntos
Bebidas Gaseificadas , Dieta , Ingestão de Líquidos , Erosão Dentária
15.
Rev. odontol. UNESP (Online) ; 39(2)abr. 2010. tab
Artigo em Português | LILACS-Express | ID: lil-553636

RESUMO

O crescente consumo de bebidas açucaradas e com pH ácido tem sido considerado um fator de risco para o desenvolvimento de lesões nas superfícies dentais. Dessa forma, o objetivo deste estudo foi avaliar o pH, a condutividade elétrica e a quantidade de Sólidos Solúveis Totais (SST) de bebidas gaseificadas comercializadas na cidade de João Pessoa - PB. Constituíram a amostra os produtos Aquarius Regular®, Aquarius Fresh® limão, H2OH!® limão, H2OH!® limão e tangerina, Aquazero® limão, Água Mineral Schincariol® com gás, Água Tônica Antárctica® (controle positivo) e Água Mineral Schincariol® sem gás (controle negativo). A avaliação do pH foi realizada mediante o uso de pHgâmetro digital, modelo pH 300, da marca Analyser®. A condutividade elétrica foi determinada por um condutivímetro de bancada modelo 600 da Analyser®. Para a quantificação dos Sólidos Solúveis Totais ou °Brix, utilizou-se um refratômetro específico de campo, modelo N1, Atago®. Os valores de pH variaram de 2,85(controle positivo) a 6,41(controle negativo), estando as demais bebidas abaixo do pH 3,85. Os resultados para condutividade elétrica variaram de 81 mS.cm?1 (controle negativo) a 1.004 mS.cm?1 (H2OH!® limão e tangerina). Com relação aos SST, todas as bebidas, com exceção da Água Tônica Antárctica® (7,5 °Brix), tiveram valor 0 °Brix. Com base na metodologia adotada e nos resultados obtidos, observou-se que as bebidas analisadas neste estudo revelaram-se potencialmente erosivas.


The increasing consumption of sugar beverages and with acidic pH has been considered a factor of risk for the development of injuries in dental surfaces. Therefore, the objective of this study was to evaluate the pH, the electrical conductivity and the amount of Total Soluble Solids (SST) of carbonated beverages commercialized in the city of João Pessoa - PB. The sample was formed by the following products Aquarius Regular®, Aquarius Fresh® lemon, H2OH!® lemon, H2OH!® lemon and tangerine, Aquazero® lemon, Sparkling Mineral Water Schincariol®, Antartic Tonic Water® (positive control) and Still Mineral Water Schincariol® (negative control). The evaluation of pH was performed by the use of a digital pH meter, model pH 300, brand Analyser®. The electrical conductivity was determined by a bench conductivimeter, model 600 of the Analyzer®. For the quantification of Total Soluble Solids or °Brix was used a specific refractometer of , model N1, Atago®. The pH values varied from 2.85 (positive control) to 6.41 (negative control), and the other beverages had pH below 3.85. The results for electrical conductivity varied from 81 mS.cm?1 (negative control) to 1,004 mS.cm?1 (H2OH!® lemon and tangerine). About the SST, all the beverages, except the Antarctic Tonic Water® (7.5 °Brix) had value 0 °Brix. Based on the methodology adopted and the results obtained, it was observed that the beverages analyzed in this study proved to be potentially erosive.

SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA