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Efficacy of EDTA-T gel for smear layer removal at root surfaces
  • Universidade Estadual Paulista (UNESP)
  • Universidade Estadual de Ponta Grossa (UEPG)
  • Guarulhos University
Objective: The purpose of this in vitro study was to investigate the efficacy of EDTA gel preparation, associated with texapon detergent (EDTA-T), for removing the smear layer at human root surfaces. Method and materials: An experimental smear layer was produced by scaling using periodontal curettes, and the root surfaces were etched with the following concentrations of EDTA-T: 5%, 10%, 15%, 20%, 24%, and negative control (saline solution) for 1, 2, or 3 minutes using both passive and active methods. The surfaces were evaluated by scanning electron microscopy, and photomicrographs were evaluated in relation to smear removal. Results: All EDTA-T groups were more effective than the control group (P < .0001). EDTA-T at 15% was more effective when applied by the passive method, although this difference was not observed for the active method. The active method was statistically better than the passive method (P < .0001). Conclusion: The etching of the root surface with EDTA-T gel by active application, independently of the other factors evaluated, was effective for smear layer removal.
Issue Date: 
Quintessence International, v. 36, n. 7-8, p. 551-558, 2005.
Time Duration: 
  • EDTA
  • Periodontal diseases
  • Periodontal therapy
  • Scanning electron microscopy
  • Smear layer
  • Tooth root
  • edetic acid
  • sodium chloride
  • texapon
  • concentration (parameters)
  • controlled study
  • dental acid etching
  • dental equipment
  • dental surgery
  • experiment
  • gel
  • human
  • human tissue
  • in vitro study
  • intermethod comparison
  • microphotography
  • periodontics
  • scanning electron microscopy
  • smear
  • statistical analysis
  • time
  • tooth root
  • Acid Etching, Dental
  • Chelating Agents
  • Dentin
  • Edetic Acid
  • Gels
  • Humans
  • Microscopy, Electron, Scanning
  • Root Canal Preparation
  • Smear Layer
  • Time Factors
  • Tooth Root
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Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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