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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/125940
Title: 
Residues of different gel formulations on dentinal walls: a SEM/EDS analysis
Author(s): 
Institution: 
  • Universidade Estadual Paulista (UNESP)
  • Universidade do Rio Grande do Sul (UFRGS)
  • Universidade do Sul de Santa Catarina (UNISUL)
ISSN: 
1059-910X
Abstract: 
The aim of this study was to evaluate the presence of residues of sodium hypo-chlorite gel, chlorhexidine gel, and EDTA gel on dentina l walls after canal preparat ion throughchemical SEM- elemental chemical microanal ys is (EDS) analysis. Forty-eight single-rootedteeth were selected. They had their crowns sectioned and were instrumented with a reciprocat-ing system. The canals were irrigated with 5 mL of saline solution during root canal preparation.After instrumentation, the root canals were irrigated with 3 mL 17% EDTA followed by 1 min ofultrasonic passive activation (33 20 sec) to remove the smear layer, and then irrigated with3 mL of saline solution. The specimens were randomized into three groups (n 5 12) accord ing tothe chemical substance that filled the root canal for 30 min: GI: 5.5% sodium hypochlorite gel;GII: 2% chlorhexidine gel; GIII: 24% EDTA gel; Negative c ontrol group: no substance was used.Then, the root canals were irrigated with 6 mL of saline solution followed by 1 min of ultrasonicpassive activation (33 20 sec). After ultrasonic activation , the canals were irrigated with 2 mLsaline. The roots were sect ioned, and the perce ntage of each chemical element present in thesamples was analyzed through chemi cal SEM-EDS microanalysis. All expe rimental groupsshowed a significantly higher percentage of chemical elements (Na and/or Cl) than the controlgroup (P < 0.03). This in vitro study has shown that, regardless of chemical solutions used evenafter the final irrigation protocol, chemical residues of d ifferent substances remained attached tothe r oot c anal wa lls. Microsc. Res. Tech. 78:495–49 9, 2015.
Issue Date: 
2015
Citation: 
Microscopy Research and Technique, v. 78, p. 495–499, 2015.
Time Duration: 
495–499
Keywords: 
  • Endodontics
  • Sodium hypochlorite
  • Chlorhexidine
  • EDTA
  • Electron probe microanalysis
Source: 
http://onlinelibrary.wiley.com/doi/10.1002/jemt.22500/abstract?systemMessage=Wiley+Online+Library+will+have+intermittent+access+on+8th+August+2015+from+10%3A00-16%3A00+BST+%2F+05%3A00-11%3A00+EDT+%2F+17%3A00-23%3A00+SGT+for+essential+maintenance.++Apologies+for+the+inconvenience.
URI: 
Access Rights: 
Acesso restrito
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/125940
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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