Objective: The purpose of the present study is to evaluate and analyze the effectiveness of dentin surface’s smear layer removal and lubricating ability for the test production, which is a clear colored EDTA root canal conditioner specializing in visibility of the root canal during treatment. Materials and Methods: Experiment - Evaluation of smear layer removal effect with an electron microscope. After removing the dental crown of a single-rooted tooth, it was split in the perpendicular direction, embedded with the cross-section surface turned upwards, and the surface was polished. The test product, EDTA 17% gel, was applied, onto the dentin surface for one minute, and then a SEM (Scanning Electron Microscope) observation was made to examine the smear layer removal effect. Results: Smear layer at the root canal orifice, mid-canal section, and the apical end of the canal was removed and dentinal tubules were open. Conclusion: The test product (EDTA 17% gel) was confirmed to be effective at smear layer removal at each measuring spot with one minute of application time. In addition, hindrance in the viewing field during the root canal treatment was reduced due to the transparency of the product, and it provides higher safety for treatment than other means.
I specialize in endodontic therapy at university and are doing research on EDTA.In AAE 17, demineralization of root canal dentin was presented using a hardness test.