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Anticariogenic potencial of acidulate solutions with low fluoride concentration
Delbem, Alberto Carlos Botazzo; Tiano, Gilberto Carlos; Alves, Karina Mirela Ribeiro Pinto; Cunha, Robson Fredterico.
  • Delbem, Alberto Carlos Botazzo; São Paulo State University. School of Dentistry of Araçatuba. Department of Pediatric Dentistry. BR
  • Tiano, Gilberto Carlos; São Paulo State University. School of Dentistry of Araçatuba. Department of Pediatric Dentistry. BR
  • Alves, Karina Mirela Ribeiro Pinto; São Paulo State University. School of Dentistry of Araçatuba. Department of Pediatric Dentistry. BR
  • Cunha, Robson Fredterico; São Paulo State University. School of Dentistry of Araçatuba. Department of Pediatric Dentistry. BR
J. appl. oral sci ; 14(4): 233-237, July-Aug. 2006. tab
Article in English | LILACS, BBO | ID: lil-447826
ABSTRACT
OBJETIVES The aim of this study was to verify the anticariogenic effect of acidulate solutions with low NaF concentration, using pH-cycling model and bovine enamel. MATERIAL AND

METHODS:

Enamel blocks were submitted to the surface microhardness (SMH) test and randomly divided in 12 experimental and one placebo groups. The blocks were submitted to pH cycling for 7 days, with daily applications once/day of 0.05 percent NaF and 0.1 percent NaF and twice/day of 0.02 percent NaF solutions. Four different pH 4.0, 5.0, 6.0 and 7.0 were used. Next, SMH test was again used to determine the surface microhardness percentage change ( percentSMH). Data obtained for percentSMH were homogeneous and passed through variance analyses and Tukey's test (5 percent) as far as fluoride concentrations and pH.

RESULTS:

The results showed that pH influenced percentSMH in 0.02 percent NaF and 0.05 percent NaF solutions with pH 4.0, which had less mineral loss compared to pH 7.0 (p<0.05). The 0.02 percent NaF - pH 4.0, and 0.05 percent NaF - pH 7.0 groups showed similar results (p>0.05). A dose-response relationship was observed among the tested solutions, with better anticariogenic effect for the 0.1 percent NaF solution.

CONCLUSION:

The results suggest that the addition of citric acid to acidulate mouth rinses reduce mineral loss.
RESUMO

OBJETIVO:

O objetivo do presente estudo foi verificar o efeito anticariogênico de soluções aciduladas com baixa concentração de flúor, usando um modelo de ciclagem de pH e esmalte bovino. MATERIAL E

MÉTODO:

Blocos de esmalte foram polidos, submetidos ao teste de microdureza de superfície (SMH) e divididos aleatoriamente em 12 grupos experimentais e um placebo. Os blocos foram submetidos à ciclagem de pH por 7 dias e a aplicações diárias de soluções de NaF a 0,05 por cento e 0,1 por cento (1x) e de 0,02 por cento (2x), com pHs 4.0, 5.0, 6.0 e 7.0. A seguir, determinou-se a SMH novamente para o cálculo da porcentagem de alteração da microdureza de superfície ( por centoSMH). Os dados de por centoSMH foram homogêneos e submetidos a análise de variância e teste de Tukey (5 por cento) considerando as concentrações de flúor e pH.

RESULTADOS:

O pH influenciou a por centoSMH nas soluções de NaF 0,02 por cento e 0,05 por cento com pH 4.0, no qual a perda mineral foi menor quando comparado ao pH 7.0 (p<0,05). Os grupos das soluções de NaF 0,02 por cento - pH 4.0, e de NaF 0,05 por cento - pH 7.0 mostraram resultados similares (p>0,05). A relação dose-resposta foi observada entre as soluções testadas, com melhor efeito anticariogênico para a solução de NaF 0,1 por cento.

CONCLUSÃO:

Os resultados sugerem que a acidificação das soluções com baixa concentração de fluoreto reduz a perda mineral.
Subject(s)
Full text: Available Index: LILACS (Americas) Main subject: Sodium Fluoride / In Vitro Techniques / Cariogenic Agents / Demineralization / Tooth Demineralization / Dental Caries / Dental Enamel Type of study: Controlled clinical trial Language: English Journal: J. appl. oral sci Journal subject: Dentistry Year: 2006 Type: Article Affiliation country: Brazil Institution/Affiliation country: São Paulo State University/BR

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Full text: Available Index: LILACS (Americas) Main subject: Sodium Fluoride / In Vitro Techniques / Cariogenic Agents / Demineralization / Tooth Demineralization / Dental Caries / Dental Enamel Type of study: Controlled clinical trial Language: English Journal: J. appl. oral sci Journal subject: Dentistry Year: 2006 Type: Article Affiliation country: Brazil Institution/Affiliation country: São Paulo State University/BR