In situ effect of sodium fluoride or titanium tetrafluoride varnish and solution on carious demineralization of enamel
Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
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Data(s) |
05/11/2013
05/11/2013
2012
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Resumo |
This study evaluated the effect of titanium tetrafluoride (TiF4) formulations on enamel carious demineralization in situ. Thirteen subjects took part in this cross-over, split-mouth, double-blind study performed in three phases of 14 d each. In each subject, two sound and two predemineralized specimens of bovine enamel were worn intra-orally and plaque accumulation was allowed. One sound and one predemineralized specimen in each subject was treated once with sodium fluoride (NaF) varnish or solution (Treatment A); TiF4 varnish or solution (Treatment B); or placebo varnish or no treatment (Treatment C). The initially sound enamel specimens were exposed to severe cariogenic challenge (20% sucrose, eight times daily for 5 min each time), whereas the predemineralized specimens were not. Eleven subjects were able to finish all experimental phases. The enamel alterations were quantified by surface hardness and transversal microradiography. Demineralization of previously sound enamel was reduced by all test formulations except for the NaF solution, while both TiF4 formulations were as effective as NaF varnish. For the predemineralized specimens, enamel surface hardness was increased only by TiF4 formulations, while subsurface mineral remineralization could not be seen in any group. Within the experimental protocol, TiF4 was able to decrease enamel demineralization to a similar degree as NaF varnish under severe cariogenic challenges, while only TiF4 formulations remineralized the enamel surface. FAPESP FAPESP [Proc. 2010/09296-1, Proc. 2009/06534-1] |
Identificador |
EUROPEAN JOURNAL OF ORAL SCIENCES, HOBOKEN, v. 120, n. 4, supl. 1, Part 6, pp. 342-348, AUG, 2012 0909-8836 http://www.producao.usp.br/handle/BDPI/41825 10.1111/j.1600-0722.2012.00968.x |
Idioma(s) |
eng |
Publicador |
WILEY-BLACKWELL HOBOKEN |
Relação |
EUROPEAN JOURNAL OF ORAL SCIENCES |
Direitos |
closedAccess Copyright WILEY-BLACKWELL |
Palavras-Chave | #DENTAL CARIES #FLUORIDE #TITANIUM #TOOTH DEMINERALIZATION #TOOTH REMINERALIZATION #ARTIFICIAL LESION FORMATION #CARIES CONTROL #TOPICAL APPLICATION #DENTAL ENAMEL #TIF4 VARNISH #VITRO #REMINERALIZATION #INVITRO #AGENTS #HYDROXYAPATITE #DENTISTRY, ORAL SURGERY & MEDICINE |
Tipo |
article original article publishedVersion |