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|Title:||Influence of the organic matrix on root dentine erosion by citric acid|
|Author:||Hara, A. T.|
Cury, J. A.
Serra, M. C.
Zero, D. T.
|Abstract:||This investigation was conducted in an attempt to clarify the role of the organic matrix in bovine dentine demineralisation by 1% citric acid. Dentine slabs (n = 15) were treated for 2 min with 10% sodium hypochlorite (NaOCl, a strong protein solvent), 2% glutaraldehyde (GDA, a protein fixative) or deionised water (DIW, as negative control) prior to each of 5 demineralisation periods of 30 min. The mineral loss (DeltaZ), lesion depth (LD) and surface loss (SL) were determined after each period of demineralisation, by transverse microradiography. The NaOCl-treated group showed higher DeltaZ and LD than the GDA- and DIW-treated groups. No differences between GDA and DIW groups were found. The DeltaZ and LD profiles were explained by quadratic fits (r(2) > 0.80; p = 0.001) in all groups. SL was detected only in the NaOCl-treated group. The data suggested that the maintenance of the organic matrix in the lesion might be important to reduce the erosion progression rate|
Dentes - Erosão
|Editor:||S. Karger AG|
|Citation:||Caries Research. Karger, v. 39, n. 2, n. 134, n. 138, 2005.|
|Appears in Collections:||FOP - Artigos e Outros Documentos|
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