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Utilize este identificador para citar ou criar um link para este item: http://acervodigital.unesp.br/handle/11449/15507
Título: 
Effect of 4% titanium tetrafluoride solution on dental erosion by a soft drink: An in situ/ex vivo study
Autor(es): 
Instituição: 
  • Universidade Estadual Paulista (UNESP)
  • Universidade de São Paulo (USP)
  • Universidade Federal de São Carlos (UFSCar)
ISSN: 
0003-9969
Resumo: 
Objective: This in situ/ex vivo study assessed the effect of titanium tetrafluoride (TiF4) on permanent human enamel subjected to erosion.Design: Ten volunteers took part in this study performed in two phases. In the first phase (ERO), they wore acrylic palatal appliances containing two enamel blocks, divided into two rows: TiF4 (F) and no-TiF4 (no-F). During the 1st day, the formation of a salivary pellicle was allowed. In the 2nd day, the TiF4 solution was applied on one row (ERO + F), whereas on the other row no treatment was performed (ERO + no-F). From 3rd until 7th day, the blocks were subjected to erosion, 4x per day. In the 2nd phase (no-ERO), the volunteers wore acrylic palatal appliances containing one enamel block, during 2 days, to assess the effect of TiF4 only (no-ERO + F). Enamel alterations were determined using profilometry (wear), microhardness (%SMHC) tests, scanning electron microscope and microprobe analysis. The %SMHC and wear were tested using ANOVA and Tukey's post hoc tests (p < 0.05).Results: The mean of %SMHC and wear ( mu m) values ( +/- S.D.) were, respectively: ERO + F -73.32 +/- 5.16(A)/2.40 +/- 0.60(a); ERO + no-F -83.49 +/- 4.59B/1.17 +/- 0.48(b) and no-ERO + F -67.92 +/- 6.16(A)/0.21:E 0.09(c). In microscope analysis, the no-F group showed enamel with honeycomb appearance. For F groups, it was observed a surface coating with microcracks. The microprobe analysis revealed the presence of the following elements (%) in groups ERO + F, ERO + no-F and no-ERO + F, respectively: Ca (69.9, 72.5, 66.25); P (25.9, 26.5, 26.06); Ti (3.0, 0, 5.93).Conclusions: The TiF4 was unable to reduce dental erosion. (c) 2007 Elsevier Ltd. All rights reserved.
Data de publicação: 
1-Mai-2008
Citação: 
Archives of Oral Biology. Oxford: Pergamon-Elsevier B.V. Ltd, v. 53, n. 5, p. 399-404, 2008.
Duração: 
399-404
Publicador: 
Pergamon-Elsevier B.V. Ltd
Palavras-chaves: 
  • erosion
  • soft drinks
  • fluoride
  • titanium
Fonte: 
http://dx.doi.org/10.1016/j.archoralbio.2007.10.011
Endereço permanente: 
Direitos de acesso: 
Acesso restrito
Tipo: 
outro
Fonte completa:
http://repositorio.unesp.br/handle/11449/15507
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