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

• Main Authors: Andrea Kanako Yamazaki, Cacio Moura-Netto, Ricardo Julio Cabrales Salgado, Brigida Monica Kleine, Igor Prokopowitsch
• Format: Article
• Language: English
• Published: Sociedade Brasileira de Pesquisa Odontológica 2010-03-01
• Series: Brazilian Oral Research
• Subjects: Root canal therapy; Microscopy; electron; scanning; Root canal irrigants
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=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.