The effect of fluoride toothpaste on root dentine demineralization progression : a pilot study
J. N. Botelho, A. A. Del Bel Cury, W. J. Da Silva, L. M. A. Tenuta, J. A. Cury
ARTIGO
Inglês
The anticaries effect of fluoride (F) toothpaste containing 1100 μg F/g in reducing enamel demineralization is well established, but its effect on dentine has not been extensively studied. Furthermore, it has been shown that toothpaste containing a high F concentration is necessary to remineralize...
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The anticaries effect of fluoride (F) toothpaste containing 1100 μg F/g in reducing enamel demineralization is well established, but its effect on dentine has not been extensively studied. Furthermore, it has been shown that toothpaste containing a high F concentration is necessary to remineralize root dentine lesions, suggesting that a 1100 μg F/g concentration might not be high enough to reduce root dentine demineralization, particularly when dentine is subjected to a high cariogenic challenge. Thus, the aim of this pilot study was to evaluate in situ the effect of F toothpaste, at a concentration of 1100 μg F/g, on dentine demineralization. In a crossover and double-blind study, conducted in two phases of 14 days, six volunteers wore a palatal appliance containing four slabs of bovine root dentine whose surface hardness (SH) was previously determined and to which a 10% sucrose solution was applied extra-orally 8×/day. Volunteers used a non-F toothpaste (negative control) or F toothpaste (1100 μg F/g, NaF/SiO2) three times a day. On the 10th and 14th days of each phase, two slabs were collected and SH was determined again. Dentine demineralization was assessed as percentage of SH loss (%SHL). The effect of toothpaste was significant, showing lower %SHL for the F toothpaste group (42.0 ± 9.7) compared to the non-F group (62.0 ± 6.4; p < 0.0001), but the effect of time was not significant (p > 0.05). This pilot study suggests that F toothpaste at 1100 μg F/g is able to decrease dentine caries even under a high cariogenic challenge of biofilm accumulation and sugar exposure
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CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQ
475178/2011-4; 305310/2011-9; 140372/2010-5
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The effect of fluoride toothpaste on root dentine demineralization progression : a pilot study
J. N. Botelho, A. A. Del Bel Cury, W. J. Da Silva, L. M. A. Tenuta, J. A. Cury
The effect of fluoride toothpaste on root dentine demineralization progression : a pilot study
J. N. Botelho, A. A. Del Bel Cury, W. J. Da Silva, L. M. A. Tenuta, J. A. Cury
Fontes
Brazilian oral research (Fonte avulsa) |