morphology of the dentin on primary molars after the application of phosphoric acid under different conditions

Clicks: 258
ID: 225209
2010
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Abstract
The aim of this study was to evaluate changes in the superficial dentin pattern of primary teeth after applying different phosphoric acid concentrations and conditioning times. Twenty-four dentin surfaces were divided in 4 groups with 10 teeth each: GI -no treatment; GII to GIV -phosphoric acid at 37%, 32%, and 10% respectively. The samples were divided into two halves: one treated for 7 seconds (T1) and the other one for 15 seconds (T2). They were submitted to scanning electronic microscopy (SEM). A reticule was superimposed upon the images to randomly select dentinal tubules measured in µm². The conditioning times did not cause significant differences in the mean diameter values of the dentin tubules within each test group: GII (T1= 4.86; T2= 4.70); GIII (T1 = 3.83; T2= 3.08); GIV (T1= 5.04; T2= 5.23). Comparing different groups, there were no differences in T1. The same results were observed in T2, except for GIV which presented higher mean diameter values than GIII. The extent of acid conditioning did not influence tubule opening within groups. When different types of acids where compared, only the 10% phosphoric acid showed upper tubule opening than 32% phosphoric acid. The dentin pattern varied according to the type of acid used for conditioning.
Reference Key
pimenta2010brazilianmorphology Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Renata Antonini Pimenta;Cláudia Valéria de Sousa Resende Penido;Roberval de Almeida Cruz;José Bento Alves
Journal journal of information and computational science
Year 2010
DOI
10.1590/S1806-83242010000300011
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242010000300011
Keywords
microscopy tooth dentin

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