Ex vivo analysis of root canal cleaning using Endo-PTC associated to NaOCl and different irrigant solutions

• Published in: Brazilian oral research Vol. 24; no. 1; pp. 15 - 20
• Main Authors: Yamazaki, Andrea Kanako, Moura-Netto, Cacio, Salgado, Ricardo Julio Cabrales, Kleine, Brigida Monica, Prokopowitsch, Igor
• Format: Journal Article
• Language: English
• Published: Brazil Sociedade Brasileira de Pesquisa Odontológica - SBPqO 01-03-2010; Sociedade Brasileira de Pesquisa Odontológica
• Subjects: Dental Pulp Cavity - drug effects; Dentin - drug effects; Dentistry; DENTISTRY, ORAL SURGERY & MEDICINE; Disinfectants - pharmacology; Edetic Acid - pharmacology; electron; Humans; Materials Testing; Microscopy; Microscopy, Electron, Scanning; Root canal irrigants; Root Canal Irrigants - pharmacology; Root Canal Preparation - methods; Root canal therapy; scanning; Smear Layer; Sodium Hypochlorite - pharmacology; Surface Properties; electron; Root canal irrigants; Root canal therapy; Microscopy; scanning
• ISSN: 1806-8324; 1807-3107; 1807-3107; 1806-8324
• DOI: 10.1590/S1806-83242010000100003

The aim of this study was to assess qualitatively, by means of SEM images, the cleaning of the dentin walls of root canals after chemical-surgical preparation using Endo-PTC cream with 0.5% and 1% sodium hypochlorite and different final irrigating solutions. Seventy-two single-rooted human teeth were divided into eight groups and prepared using Endo-PTC cream with sodium hypochlorite (NaOCl) at different concentrations, and irrigated with NaOCl at different concentrations. Final irrigation was performed with either EDTA-T or EDTA-C. The best results were obtained with Group 1, followed by Groups 5, 2, 7, 8, 3, 6 and 4. We can conclude that the use of 0.5% NaOCl during instrumentation and final flush of the root canals was more efficient in cleaning than was 1% sodium hypochlorite. EDTA-T was more efficient in removing smear layer than EDTA-C, and the cervical third presented better cleaning of the root canal walls than did the middle third, which showed cleaner dentin walls than the apical third.