Efficacy of EDTA-T gel for smear layer removal at root surfaces.

Abstract

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.

• Authors: Luiz Henrique Carvalho Batista, José Eduardo Cezar Sampaio, Gibson Luiz Pilatti, Jamil Awad Shibli
• Journal: Quintessence international (Berlin, Germany : 1985) (Quintessence Int) 2005 Jul-Aug Vol. 36 Issue 7-8 Pg. 551-8 ISSN: 0033-6572 [Print] Germany
• PMID: 15997936 (Publication Type: Clinical Trial, Journal Article, Randomized Controlled Trial)

Chemical References

• Chelating Agents
• Gels
• Edetic Acid

Topics

• Acid Etching, Dental (methods)
• Chelating Agents (administration & dosage, therapeutic use)
• Dentin (drug effects)
• Edetic Acid (administration & dosage, therapeutic use)
• Gels
• Humans
• Microscopy, Electron, Scanning
• Root Canal Preparation (methods)
• Smear Layer
• Time Factors
• Tooth Root (drug effects)