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Braz. oral res ; 24(1): 15-20, Jan.-Mar. 2010. ilus, tab
Artículo en Inglés | LILACS | ID: lil-541507

RESUMEN

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 percent and 1 percent 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 percent NaOCl during instrumentation and final flush of the root canals was more efficient in cleaning than was 1 percent 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.


Asunto(s)
Humanos , Cavidad Pulpar/efectos de los fármacos , Dentina/efectos de los fármacos , Desinfectantes/farmacología , Irrigantes del Conducto Radicular/farmacología , Preparación del Conducto Radicular/métodos , Hipoclorito de Sodio/farmacología , Ácido Edético/farmacología , Ensayo de Materiales , Microscopía Electrónica de Rastreo , Capa de Barro Dentinario , Propiedades de Superficie
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