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Effect of Different Fluoride Concentrations of Experimental Dentifrices on Enamel Erosion and Abrasion

MORETTO, M. J.; MAGALHAES, A. C.; SASSAKI, K. T.; DELBEM, A. C. B.; MARTINHON, C. C. R.
Fonte: KARGER Publicador: KARGER
Tipo: Artigo de Revista Científica
Português
Relevância na Pesquisa
36.89%
It has been suggested that fluoride products are able to reduce erosive tooth wear. Thus, the purpose of this in vitro study was to evaluate the effect of dentifrices with different fluoride concentrations as well as of a low-fluoridated dentifrice supplemented with trimetaphosphate (TMP) on enamel erosion and abrasion. One hundred twenty bovine enamel blocks were assigned to the following experimental dentifrices: placebo, 1,100 mu g F/g, 500 mu g F/g plus 3% TMP and 5,000 mu g F/g. The groups of enamel blocks were additionally subdivided into conditions of erosion (ERO) and of erosion plus abrasion (ERO + ABR). For 7 days, the blocks were subjected to erosive challenges (immersion in Sprite (R) 4 times a day for 5 min each time) followed by a remineralizing period (immersion in artificial saliva between erosive challenges for 2 h). After each erosive challenge, the blocks were exposed to slurries of the dentifrices (10 ml/sample for 15 s). Sixty of the blocks were additionally abraded by brushing using an electric toothbrush (15 s). The alterations of the enamel were quantified using the Knoop hardness test and profilometry (measurements in micrometers). The data were analyzed using a 2-way ANOVA test followed by a Bonferroni correction (p < 0.05). In in vitro conditions...

Low-Fluoride Acidic Dentifrice: A Randomized Clinical Trial in a Fluoridated Area

VILHENA, F. V.; OLYMPIO, K. P. K.; LAURIS, J. R. P.; DELBEM, A. C. B.; BUZALAF, M. A. R.
Fonte: KARGER Publicador: KARGER
Tipo: Artigo de Revista Científica
Português
Relevância na Pesquisa
37.59%
Background: Low-fluoride dentifrices have been suggested as alternatives to reduce dental fluorosis risk, but there is no consensus regarding their clinical effectiveness, which has been suggested to be increased when their pH is acidic. Aims: This single-blind randomized clinical trial evaluated the caries increment during the use of a low-fluoride acidic liquid dentifrice. Methods: Four-year-old schoolchildren (n = 1,402) living in a fluoridated area (0.6-0.8 ppm F) were randomly allocated to 4 groups differing according to the type of dentifrice used over a 20-month period. Group 1 (n = 345): liquid dentifrice, 1,100 ppm F, pH 4.5. Group 2 (n = 343): liquid dentifrice, 1,100 ppm F, pH 7.0. Group 3 (n = 354): liquid dentifrice, 550 ppm F, pH 4.5. Group 4 (n = 360): toothpaste, 1,100 ppm F, pH 7.0. At baseline and after 20 months, clinical examinations were conducted (dmfs index) and caries increment was calculated. Data were analysed by GLM procedure using classrooms (cluster) as unit of analysis (p < 0.05). Results: The mean +/- SD (95% CI) net increments found were as follows. Group 1: 2.06 +/- 2.38 (1.8-2.3); group 2: 2.08 +/- 2.87 (1.7-2.4); group 3: 2.05 +/- 2.79 (1.7-2.4), and group 4: 2.08 +/- 2.34 (1.8-2.4). No significant differences were detected among the groups. Conclusion: In a population with high caries risk living in a fluoridated area...

Fluoride uptake by plaque from water and from dentifrice

PESSAN, J. P.; SILVA, S. M. B.; LAURIS, J. R. P.; SAMPAIO, F. C.; WHITFORD, G. M.; BUZALAF, M. A. R.
Fonte: INT AMER ASSOC DENTAL RESEARCHI A D R/A A D R Publicador: INT AMER ASSOC DENTAL RESEARCHI A D R/A A D R
Tipo: Artigo de Revista Científica
Português
Relevância na Pesquisa
47.6%
It has been suggested that fluoride retention in plaque is limited by available binding sites. We determined the effects of fluoridated or placebo dentifrices on plaque and salivary fluoride concentrations [F]s in communities with different water fluoride concentrations (0.04, 0.85, 3.5 ppm). After one week of dentifrice use, samples were collected 1.0 and 12 hrs after the last use of dentifrices. After the use of fluoridated dentifrice, plaque fluoride concentrations were higher at both times, except at 12 hrs in the 3.5-ppm community. Plaque concentrations at 1.0 hr after the use of fluoridated dentifrice increased almost constantly (6.5 mmol/kg), but then decreased approximately 50% at 12 hrs in each community. Unlike previous studies, the present findings suggest that the use of fluoridated dentifrice is likely to increase plaque fluoride concentrations significantly for up to 12 hrs in areas where the water contains fluoride close to 1.0 ppm. As previously reported, plaque fluoride concentrations were directly related to calcium concentrations.

Biomarkers of Fluoride in Children Exposed to Different Sources of Systemic Fluoride

BUZALAF, M. A. R.; RODRIGUES, M. H. C.; PESSAN, J. P.; LEITE, A. L.; ARANA, A.; VILLENA, R. S.; FORTE, F. D. S.; SAMPAIO, F. C.
Fonte: SAGE PUBLICATIONS INC Publicador: SAGE PUBLICATIONS INC
Tipo: Artigo de Revista Científica
Português
Relevância na Pesquisa
27.52%
There has been no comparison between fluoride concentrations in urine and nails of children exposed to different sources of systemic fluoride. The aim of this study was to compare the relationship between fluoride intake with urinary fluoride excretion and fluoride concentrations in fingernails and toenails of children receiving fluoride from artificially fluoridated water (0.6-0.8 mg F/L, n = 25), naturally fluoridated water (0.6-0.9 mg F/L, n = 21), fluoridated salt (180-200 mg F/Kg, n = 26), and fluoridated milk (0.25 mg F, n = 25). A control population was included (no systemic fluoride, n = 24). Fluoride intake from diet and dentifrice, urinary fluoride excretion, and fluoride concentrations in fingernails/toenails were evaluated. Fluoride was analyzed with an ion-selective electrode. Urinary fluoride excretion in the control community was significantly lower when compared with that in the fluoridated cities, except for the naturally fluoridated community. However, the same pattern was not as evident for nails. Both urinary fluoride output and fluoride concentrations in fingernails/toenails were significantly correlated to total fluoride intake. However, the correlation coefficients for fluoride intake and urinary fluoride output were lower (r = 0.28...

The efficacy of a highly concentrated fluoride dentifrice on bovine enamel subjected to erosion and abrasion

RIOS, Daniela; MAGALHAES, Ana Carolina; POLO, Renata Ocon Braga; WIEGAND, Annette; ATTIN, Thomas; BUZALAF, Marilia Afonso Rabelo
Fonte: AMER DENTAL ASSOC Publicador: AMER DENTAL ASSOC
Tipo: Artigo de Revista Científica
Português
Relevância na Pesquisa
36.89%
Background. Researchers have proposed the use of fluoride for the prevention of enamel wear; however, only limited information is available about the impact of fluoridated dentifrices. Because tooth wear is a well-recognized dental problem, the authors conducted an in situ, ex vivo study to assess the efficacy of a highly concentrated fluoride dentifrice on bovine enamel subjected to erosion and abrasion. Methods. The authors conducted a double-blind, crossover in situ study consisting of three phases (seven days each). In each phase, the authors tested one of the dentifrices (5,000 parts per million fluoride [F]; 1,100 ppm F; no F). They performed erosive challenges with the use of cola drink (60 seconds, four times per day) and abrasive challenges via toothbrushing (30 seconds, four times per day). The authors determined the enamel loss via profilometry. Results. The authors tested the data by using two-way analysis of variance (P; Sao Paulo State Research Foundation (FAPESP)[06/04628-0]

"Avaliação da influência da educação precoce em saúde bucal e do uso de dentifrícios fluoretados sobre a prevalência de cárie dentária na primeira infância do município de Belém-Pará"; Evaluation of the influence of early education oral health care and the use of fluoridated dentifrice on the prevalence of dental caries in early childjooh int he city of Belem - Pará

Galindo, Vaneska Azevedo de Carvalho
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: dissertação de mestrado Formato: application/pdf
Publicado em 23/09/2003 Português
Relevância na Pesquisa
57.27%
RESUMO Este estudo avaliou a influência da educação precoce em saúde bucal do núcleo familiar e do uso de dentifrícios fluoretados sobre a prevalência de cárie dentária na primeira infância. Foram compostos dois grupos de crianças na faixa etária de 6 a 30 meses, diferindo entre si quanto ao acesso à atenção odontológica. O grupo I foi formado por 152 crianças pertencentes ao Projeto Odontobebê (Universidade Federal do Pará), enquanto o grupo II constituído por 94 crianças que não haviam recebido atendimento odontológico até a data do exame. Foi aplicado um questionário às mães com 19 perguntas a respeito dos hábitos alimentares, condutas de higiene bucal e utilização de dentifrícios fluoretados pelas crianças. Sinais clínicos da doença cárie, incluindo lesões cavitadas e manchas brancas ativas, além da presença de biofilme visível, foram avaliadas através do exame clínico. Os dados coletados foram submetidos à análise estatística, utilizando-se o software estatístico Minitab versão 11.0 com um nível de significância de 5% (P; SUMMARY This paper has evaluated the influence of early education in oral health care of the family nucleus and the use of fluoridated dentifrices on the prevalence of dental caries in early childhood. Two groups of children were made up from children aged o0 t0 30 months...

Avaliação in situ do efeito de dentifrícios com e sem flúor associados ou não à profilaxia profissional com jato de bicarbonato de sódio sobre a remineralização do esmalte dental; In situ evaluation on dental enamel remineralization after the use of fluoridated and non-fluoridated toothpaste with or without prophylaxis using sodium bicarbonate under pressure

Marta, Sara Nader
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Tese de Doutorado Formato: application/pdf
Publicado em 13/09/2002 Português
Relevância na Pesquisa
37.43%
O objetivo deste trabalho foi avaliar, ?in situ?, o potencial de remineralização do dentifrício fluoretado ou não, isoladamente ou associado à profilaxia profissional com jato de bicarbonato de sódio, em esmalte de dentes bovinos com lesão superficial artificial de cárie. Foram selecionados 10 voluntários jovens, não fumantes, que não estavam usando medicamentos e sem lesões de cárie ativa. Esses utilizaram dispositivos intrabucais palatinos contendo 2 blocos de esmalte bovino (4 x 4 x 2 mm), desmineralizados artificialmente com solução de ácido láctico 0,05M pH 5,0, 50% saturado com esmalte dental bovino (EDB), colocados no mesmo nível da resina do dispositivo, durante 4 períodos cruzados de 10 dias, com intervalo de descanso de 7 dias entre eles. Os voluntários realizaram higiene bucal (4 vezes/dia após as refeições) com o dentifrício indicado para o período e, nos intervalos de descanso, só com dentifrício não fluoretado, com a recomendação de não escovar os fragmentos de esmalte. Foram utilizados 80 blocos de esmalte, nos quais realizaram-se as medições de microdureza superficial, com penetrador Knoop e carga de 50 g por 7 s, em 3 momentos: esmalte hígido (EH), desmineralizado (ED) e tratado (ET)...

Fatores associados à fluorose dentária em área com água fluoretada; Factors associated with dental fluorosis in a water fluoridated area

Forni, Tania Izabel Bighetti
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Tese de Doutorado Formato: application/pdf
Publicado em 16/05/2005 Português
Relevância na Pesquisa
36.99%
O objetivo do estudo foi identificar fatores associados à fluorose dentária em Ribeirão Pires-SP, com água fluoretada desde 1985 e heterocontrole dos teores de flúor desde 1996. Foi realizada pesquisa epidemiológica tipo caso-controle com projeto aprovado pelo Comitê de Ética da FSP-USP. A população de estudo foi adolescentes de 12 a 15 anos de idade, identificados em 23 escolas de ensino fundamental por cirurgiã-dentista capacitada (k=0,79). Foram considerados casos 667 adolescentes com graus de fluorose 2, 3, 4 e 5 (Índice de Dean). A partir da região de residência dos casos, foram identificados 416 controles, de mesmo sexo e idade, com grau de fluorose 0, procurando-se garantir a mesma distribuição por região. Casos e controles (5 por cento ) foram examinados pela pesquisadora (k=0,90). Um formulário de entrevista foi construído, utilizando-se técnica de pesquisa exploratória, contendo dados relativos a variáveis demográficas, geográficas, escolaridade dos pais/responsáveis e relacionados à exposição a fontes de flúor em três ciclos (1o ano de vida, 1 a 3 anos e 4 a 6 anos de idade). A coleta dos dados foi feita por 55 entrevistadores cujo treinamento contemplou repetição de entrevistas e discussão de aspectos relevantes. Foram realizadas 509 entrevistas (319 casos e 190 controles). As respostas foram transcritas para digitação de forma dupla...

Concentração de flúor no biofilme dental de indivíduos expostos a diferentes fontes de flúor de base comunitária; Dental biofilm fluoride concentration of subjects exposed to different community-based fluoride sources

Mua, Bruna
Tipo: dissertação Formato: application/pdf
Português
Relevância na Pesquisa
37.32%
O objetivo deste estudo foi comparar a concentração de flúor do biofilme dental de indivíduos residenteste em áreas com água fluoretada (AF) ou sal fluoretado (SF) e determinar o efeito do dentifrício fluoretado na concentração de flúor [F] do biofilme dental destes indivíduos. Dezesseis indivíduos resendentes em Montevidéu (SF) e dezesseis indivíduos residentes em Porto Alegre (AF) participaram deste estudo randomizado, cruzado e duplo-cego. Profilaxia dental e raspagem supragengivel foram realizaras antes de cada fase experimental. Durante as fases experimentais (14 dias/cada), os indivíduos escovaram os dentes, 2x/dia, com dentifrício fluoretado (DF) ou dentifrício não-fluoretado (DNF). As amostras de biofilme dental foram coletadas 8 horas após a última escovação. As análises de [F] no biofilme dental foram realizadas com um íon epecífico e as leituras foram convertidas em ?gF¯/g de biofilme. Equações de estimativas generalizadas foram aplicadas para analisar a variância de medidas repetidas e as diferenças em cada desfecho. Uma maior [F] no biofilme foi observada na área com SF(2.69±0.10 IC 2.48–2.89) em comparação a área com AF (2.44±0.06 IC 2.32-2.57) quando do uso regular de DNF (p = 0.047). Entretanto...

Effect of Different Fluoride Concentrations of Experimental Dentifrices on Enamel Erosion and Abrasion

Moretto, M. J.; Magalhaes, A. C.; Sassaki, K. T.; Delbem, Alberto Carlos Botazzo; Martinhon, C. C. R.
Fonte: Karger Publicador: Karger
Tipo: Artigo de Revista Científica Formato: 135-140
Português
Relevância na Pesquisa
36.89%
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); It has been suggested that fluoride products are able to reduce erosive tooth wear. Thus, the purpose of this in vitro study was to evaluate the effect of dentifrices with different fluoride concentrations as well as of a low-fluoridated dentifrice supplemented with trimetaphosphate (TMP) on enamel erosion and abrasion. One hundred twenty bovine enamel blocks were assigned to the following experimental dentifrices: placebo, 1,100 mu g F/g, 500 mu g F/g plus 3% TMP and 5,000 mu g F/g. The groups of enamel blocks were additionally subdivided into conditions of erosion (ERO) and of erosion plus abrasion (ERO + ABR). For 7 days, the blocks were subjected to erosive challenges (immersion in Sprite (R) 4 times a day for 5 min each time) followed by a remineralizing period (immersion in artificial saliva between erosive challenges for 2 h). After each erosive challenge, the blocks were exposed to slurries of the dentifrices (10 ml/sample for 15 s). Sixty of the blocks were additionally abraded by brushing using an electric toothbrush (15 s). The alterations of the enamel were quantified using the Knoop hardness test and profilometry (measurements in micrometers). The data were analyzed using a 2-way ANOVA test followed by a Bonferroni correction (p < 0.05). In in vitro conditions...

Low-Fluoride Acidic Dentifrice: A Randomized Clinical Trial in a Fluoridated Area

Vilhena, F. V.; Olympio, K. P. K.; Lauris, J. R. P.; Delbem, Alberto Carlos Botazzo; Buzalaf, M. A. R.
Fonte: Karger Publicador: Karger
Tipo: Artigo de Revista Científica Formato: 478-484
Português
Relevância na Pesquisa
37.59%
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP); Processo FAPESP: 05/03975-6; Processo FAPESP: 05/04090-8; Background: Low-fluoride dentifrices have been suggested as alternatives to reduce dental fluorosis risk, but there is no consensus regarding their clinical effectiveness, which has been suggested to be increased when their pH is acidic. Aims: This single-blind randomized clinical trial evaluated the caries increment during the use of a low-fluoride acidic liquid dentifrice. Methods: Four-year-old schoolchildren (n = 1,402) living in a fluoridated area (0.6-0.8 ppm F) were randomly allocated to 4 groups differing according to the type of dentifrice used over a 20-month period. Group 1 (n = 345): liquid dentifrice, 1,100 ppm F, pH 4.5. Group 2 (n = 343): liquid dentifrice, 1,100 ppm F, pH 7.0. Group 3 (n = 354): liquid dentifrice, 550 ppm F, pH 4.5. Group 4 (n = 360): toothpaste, 1,100 ppm F, pH 7.0. At baseline and after 20 months, clinical examinations were conducted (dmfs index) and caries increment was calculated. Data were analysed by GLM procedure using classrooms (cluster) as unit of analysis (p < 0.05). Results: The mean +/- SD (95% CI) net increments found were as follows. Group 1: 2.06 +/- 2.38 (1.8-2.3); group 2: 2.08 +/- 2.87 (1.7-2.4); group 3: 2.05 +/- 2.79 (1.7-2.4)...

Efeito da frequência de uso de dentifrício fluoretado na desmineralização e remineralização do esmalte e da dentina = : Effect of frequency of fluoridated dentifrice use on enamel and dentin demineralization/remineralization; Effect of frequency of fluoridated dentifrice use on enamel and dentin demineralization/remineralization

Diego Figueiredo Nóbrega
Fonte: Biblioteca Digital da Unicamp Publicador: Biblioteca Digital da Unicamp
Tipo: dissertação de mestrado Formato: application/pdf
Publicado em 28/02/2014 Português
Relevância na Pesquisa
47.51%
Para uma maior eficácia no controle da cárie de esmalte, tem sido recomendado que a escovação dental com dentifrício fluoretado (DF) deveria ser feita pelo menos 2x/dia, entretanto além de frequências maiores não terem sido experimentalmente testadas, nada é conhecido a esse respeito quanto ao controle da cárie radicular. O objetivo do presente estudo foi avaliar o efeito da frequência de uso de dentifrício fluoretado (0, 1, 2, ou 3x/dia) na desmineralização e remineralização do esmalte e dentina, em condições de acúmulo de biofilme dental e exposição à sacarose. Foi desenvolvido um estudo in situ do tipo cruzado, duplo-cego em 4 fases de 14 dias cada, durante as quais 18 voluntários utilizaram dispositivos palatinos contendo, no mesmo aparelho, blocos dentais de esmalte e de dentina, tanto hígidos como cariados, cujas durezas de superfície (DS) foram pré-determinadas. Em cada fase, os voluntários utilizaram dentifrício fluoretado (DF) de 0 a 3x/dia, submetendo os blocos dentais a um dos seguintes tratamentos: 1) Escovação com dentifrício placebo de flúor (DP) 3x/dia; 2) Escovação com DF (1.100 µg F/g) 1x/dia e com DP 2x/dia; 3) Escovação com DF 2x/dia e 1x/dia com DP e 4) Escovação com DF 3x/dia. Sobre os blocos dentais foi permitido o acúmulo de biofilme e solução de sacarose a 20% foi gotejada 8x/dia sobre os blocos hígidos...

Visual evaluation of in vitro cariostatic effect of restorative materials associated with dentifrices

Rodrigues,José Augusto; Marchi,Giselle Maria; Serra,Mônica Campos; Hara,Anderson Takeo
Fonte: Fundação Odontológica de Ribeirão Preto Publicador: Fundação Odontológica de Ribeirão Preto
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/08/2005 Português
Relevância na Pesquisa
27.79%
This study evaluated in vitro the cariostatic effect of 6 restorative materials with and without fluoride release (Fuji II LC, F-2000, Degufil Mineral, Sure Fil and Z-250) associated with a fluoridated and a non-fluoridated dentifrice (Sensodyne Original Formula and Sensodyne Sodium Bicarbonate), on human enamel. Class V-like cavities were prepared on 240 enamel slabs, assigned to 12 groups (6 materials and 2 dentifrices). After cavity restoration, the slabs were submitted to a thermocycling regimen of 1000 thermal cycles and demineralization/remineralization cycles. During pH cycles, slurries of fluoridated and non-fluoridated dentifrices were applied for 5 min. Formation of artificial caries-like lesions was scored independently and blindly by 5 calibrated examiners according to an ordinal scale ranked 0 to 3 by visual examination. The results were analyzed statistically by the Kruskal-Wallis test and pair-wise comparisons (alpha=0.05). There were no significant differences (p>0.05) among the restorative materials associated with the fluoridated dentifrice. When used in association with the non-fluoridated dentifrice, Ketac-Fil showed the highest cariostatic effect followed by Fuji II LC and the other materials. Ketac-Fil was the only material that did not differ statistically when combined with either the fluoridated or the non-fluoridated dentifrice. In conclusion...

Microstructural analysis of demineralized primary enamel after in vitro toothbrushing

Neves,Aline de Almeida; Castro,Rodolfo de Almeida; Coutinho,Eduardo Tavares; Primo,Laura Guimarães
Fonte: Sociedade Brasileira de Pesquisa Odontológica e Faculdade de Odontologia da Universidade de São Paulo Publicador: Sociedade Brasileira de Pesquisa Odontológica e Faculdade de Odontologia da Universidade de São Paulo
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/06/2002 Português
Relevância na Pesquisa
27.56%
The aim of this study was to investigate, in vitro, the morphological characteristics of demineralized primary enamel subjected to brushing with a dentifrice with or without fluoride. In order to do so, 32 enamel blocks were divided in 4 different groups containing 8 blocks each. They were separately immersed in artificial saliva for 15 days. The experimental groups were: C - control; E - submitted to etching with 37% phosphoric acid gel (30 s); EB - submitted to etching and brushing 3 times a day with a non-fluoridated dentifrice; EBF = submitted to etching and brushing 3 times a day with a fluoridated dentifrice. The toothbrushing force was standardized at 0.2 kgf and 15 double strokes were performed on each block. After the experimental period, the samples were prepared and examined under SEM. The control group (C) showed a smooth surface, presenting scratches caused by habitual toothbrushing. The etched samples (E) exhibited different degrees of surface disintegration, but the pattern of acid etching was predominantly the type II dissolution. The brushed surfaces were smooth, with elevations which corresponded to the exposure of Tomes? process pits and depressions which corresponded to interrod enamel. Particles resembling calcium carbonate were found in the most protected parts of the grooves. No morphological differences were observed between brushing with fluoridated (EBF) and non-fluoridated (EB) dentifrice. The results suggest that the mechanical abrasion caused by brushing demineralized enamel with dentifrice smoothes the rough etched surface...

Evaluation of the total fluoride intake of 4-7-year-old children from diet and dentifrice

Pessan,Juliano Pelim; Silva,Salete Moura Bonifácio da; Buzalaf,Marília Afonso Rabelo
Fonte: Faculdade De Odontologia De Bauru - USP Publicador: Faculdade De Odontologia De Bauru - USP
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/06/2003 Português
Relevância na Pesquisa
36.98%
This study measured the total daily fluoride (F) intake of 21 children, living in Bauru, a fluoridated community. F intake from diet (D) and dentifrice (B) was determined for 2 groups of children: A (4-5-year-old) and B (6-7-year-old). The method of 24-hour duplicate diet was used. F ingested from dentifrice was indirectly obtained, subtracting the amount expelled and the amount left on the toothbrush from the amount initially loaded onto the brush. F analysis was carried out with the ion specific electrode (Orion 9409), after hexamethyldisiloxane-facilitated diffusion. The amount of F intake from D and B was divided by the child weight and total intake (T) was calculated by adding D and B. Data were analyzed by Student?s "t" (p

Effect of professional cleaning and dental brushing with or without fluoridated dentifrice on enamel remineralization

Marta,Sara Nader; Lima,José Eduardo de Oliveira; Vono,Bernardo Gonzales; Silva,Salete Moura Bonifácio da; Machado,Maria Aparecida Andrade Moreira; Pin,Maria Ligia Gerdullo
Fonte: Faculdade De Odontologia De Bauru - USP Publicador: Faculdade De Odontologia De Bauru - USP
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/09/2005 Português
Relevância na Pesquisa
47.82%
An in situ evaluation of the potential rehardening effect of fluoridated and non-fluoridated toothpastes with or without air polishing was conducted. Ten volunteers, using acrylic palatal appliances containing two bovine enamel blocks with artificial carious lesions, took part in this study. Four times a day, after the main meals and at night, the volunteers, in a habitual way, brushed their natural teeth with the dentifrice indicated to the experimental design and after that the appliances were put again into the mouth. They were divided into 4 different groups: G1 - control - non-fluoridated dentifrice; G2 - fluoridated dentifrice; G3 - non-fluoridated dentifrice, but having a previous prophylaxis using air polishing; G4 - fluoridated dentifrice and previous air polishing. The effects of treatments on enamel rehardening were evaluated in the blocks that were assessed by surface microhardness, and the percentage of surface microhardness change (%reh) was calculated in relation to the baseline values. The results showed that %reh was higher in the groups with fluoridated dentifrice, and professional prophylaxis did not have an additional effect in the groups of fluoridated dentifrices (p

Fluoride uptake in dental enamel after using fluoridated dentifrice, preceded or not by a CaCl2 solution rinse

Úbeda,Liliane Torsani; Cardoso,Vanessa Eid da Silva; Buzalaf,Marília Afonso Rabelo
Fonte: Faculdade De Odontologia De Bauru - USP Publicador: Faculdade De Odontologia De Bauru - USP
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/12/2005 Português
Relevância na Pesquisa
36.75%
INTRODUCTION: The use of a calcium solution previously to brushing could favor the remineralization and the fluoride (F) uptake in dental enamel. OBJECTIVE: This study evaluated the F in dental enamel after using a F dentifrice, preceded or not by a rinse with a CaCl2 solution. METHODS: Ten subjects (18-30 years) participated in a double-blind, cross-over protocol. Enamel biopsy and 3 min saliva samples were obtained at baseline and after brushing (1.5 g Crest®, 1,000 ppm F as NaF), preceded by a rinse with 10 mL of 20 mM CaCl2 50 mM acetate pH 7.2 or deionized water, for 1 min, followed by a 15 mL water rinse for 5 sec. Biopsies were made before the rinses and after 8-15 and 120 min. Saliva samples were collected before the rinses and after 4, 15, 30, 60 and 120 min. F concentration in enamel biopsies was analyzed with the F electrode (Orion 9409) and a miniature calomel reference electrode, while phosphorus concentration was analyzed by spectrophotometry. Saliva samples were analyzed for F with the electrode (Orion 9609) by the direct method. The data were analyzed by ANOVA and Tukey test (p

Effect of a dentifrice containing aloe vera on plaque and gingivitis control: a double-blind clinical study in humans

Oliveira,Sílvia Morgana Araújo de; Torres,Ticiana Carneiro; Pereira,Sérgio Luís da Silva; Mota,Olívia Morais de Lima; Carlos,Márlio Ximenes
Fonte: Faculdade De Odontologia De Bauru - USP Publicador: Faculdade De Odontologia De Bauru - USP
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/08/2008 Português
Relevância na Pesquisa
37.36%
The effect of Aloe vera on the reduction of plaque and gingivitis was evaluated in a randomized, parallel and double-blind clinical trial. Subjects were randomly allocated to the test group (n=15) - dentifrice containing Aloe vera - or the control group (n=15) - fluoridated dentifrice. Plaque index (PI) and gingival bleeding index (GBI) were assessed at days 0 and 30. Subjects were asked to brush their teeth with the control or test dentifrice, three times a day, during a 30-day period. There was a significant reduction on plaque and gingivitis in both groups, but no statistically significant difference was observed among them (p>0.01). The dentifrice containing Aloe vera did not show any additional effect on plaque and gingivitis control compared to the fluoridated dentifrice.

Antimicrobial capacity of Aloe vera and propolis dentifrice against Streptococcus mutans strains in toothbrushes: an in vitro study

Bertolini,Patrícia Fernanda Roesler; Biondi Filho,Oswaldo; Pomilio,Arnaldo; Pinheiro,Sérgio Luiz; Carvalho,Meghi Silva de
Fonte: Faculdade De Odontologia De Bauru - USP Publicador: Faculdade De Odontologia De Bauru - USP
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/02/2012 Português
Relevância na Pesquisa
37.12%
OBJECTIVES: This study evaluated in vitro the efficiency of Aloe vera and propolis dentifrice on reducing the contamination of toothbrush bristles by a standard strain of Streptococcus mutans (ATCC 25175; SM), after toothbrushing. MATERIAL AND METHODS: Fifteen sterile toothbrushes were randomly divided into 5 toothbrushing groups: I (negative control): without dentifrice; II: with fluoridated dentifrice; III: with triclosan and gantrez dentifrice; IV (positive control): without dentifrice and irrigation with 10 mL of 0.12% chlorhexidine gluconate; V: with Aloe vera and propolis dentifrice. In each group, 1 sterile bovine tooth was brushed for 1 min, where the toothbrush bristles were contaminated with 25 µL of SM. After toothbrushing, the bristles were stored in individual test tubes with 3 mL of BHI under anaerobiosis of 37°C for 48 h. Then, they were seeded with sterile swab in triplicate in the Mitis salivarius - Bacitracin culture medium. The samples were kept under anaerobiosis of 37°C for 48 h. Scores were used to count the number of colony forming units (cfu). The results were submitted to the Mann-Whitney statistical test at 5% significance level. RESULTS: There was statistically significant difference (p

EFFECT OF A DENTIFRICE CONTAINING ALOE VERA ON PLAQUE AND GINGIVITIS CONTROL. A DOUBLE-BLIND CLINICAL STUDY IN HUMANS

de Oliveira, Sílvia Morgana Araújo; Torres, Ticiana Carneiro; Pereira, Sérgio Luís da Silva; Mota, Olívia Morais de Lima; Carlos, Márlio Ximenes
Fonte: Faculdade de Odontologia de Bauru da Universidade de São Paulo Publicador: Faculdade de Odontologia de Bauru da Universidade de São Paulo
Tipo: text
Publicado em /08/2008 Português
Relevância na Pesquisa
37.36%
The effect of Aloe vera on the reduction of plaque and gingivitis was evaluated in a randomized, parallel and double-blind clinical trial. Subjects were randomly allocated to the test group (n=15) – dentifrice containing Aloe vera - or the control group (n=15) – fluoridated dentifrice. Plaque index (PI) and gingival bleeding index (GBI) were assessed at days 0 and 30. Subjects were asked to brush their teeth with the control or test dentifrice, three times a day, during a 30-day period. There was a significant reduction on plaque and gingivitis in both groups, but no statistically significant difference was observed among them (p>0.01). The dentifrice containing Aloe vera did not show any additional effect on plaque and gingivitis control compared to the fluoridated dentifrice.