NOTAS DE ENDODONCIA

APOYO ACADÉMICO POR ANTOLOGÍAS

UNIDAD 11: LIMPIEZA Y CONFORMACIÓN DEL CONDUCTO RADICULAR

Profesor:  Dr. Ricardo Rivas Muñoz

 

CONTENIDO GENERAL DEL CURSO CONTENIDO DE LA UNIDAD BIBLIOGRAFÍA  DE  ESTA  SECCIÓN ARTÍCULOS REVISADOS PALABRAS  CLAVE SECCIÓN:           

 

 

CONTENIDO DE LA UNIDAD 11:

Generalidades  (1ª Sección)

  • limpieza

  • conformación

  • preparación biomecánica

  • Principios de Weine

Introducción
         conductos difíciles

         objetivos generales

11.1.Irrigación (2ª Sección)
11.1.1.Objetivos
11.1.2.Soluciones e instrumental
11.1.2.1.Hipoclorito de sodio
11.1.2.2.Otras soluciones
11.1.3.Métodos de irrigación

11.2.Movimientos de la instrumentación
11.2.1.Limado
11.2.2. Escariado
11.2.3. Movimiento de dar cuerda a un reloj

11.2.4. Conformación en serie

11.2.5. Movimientos de fuerza balanceada


11.2.4.Técnicas de preparación con instrumentación manual
11.2.4.2.Técnica de retroceso
11.2.4.3.Técnica corono-radicular

11.2.5.Técnicas de preparación no manual (4ª Sección)

 

PALABRAS CLAVE:

 

 

REGRESAR A: la Sección de Irrigación de la Unidad de Limpieza y Conformación del Conducto Radicular

RESUMEN DE ARTÍCULO CITADO:

Abstract

        Effect of rotary instrumentation and of the association of calcium hydroxide and chlorhexidine on the antisepsis of the root canal system in dogs

This study aimed at evaluating the antisepsis of the root canal system (RCS) and periapical region (PR) provided by rotary instrumentation associated with chlorhexidine + calcium hydroxide as intracanal medicament. Chronic periapical lesions were induced in 26 pre-molar roots in two dogs. After microbiological sampling, automatic instrumentation using the Profile system and irrigation with 5.25% sodium hypochlorite solution, with a final rinse of 14.3% EDTA followed by profuse irrigation with physiological saline were carried out in 18 root canals. After drying the canals, a paste based on calcium hydroxide associated with a 2% chlorhexidine digluconate solution was placed inside them. After 21 days, the medication was removed, leaving the root canals empty and coronally sealed. After 96 hours, a final microbiological sample was obtained, followed by histomicrobiological processing by the Brown & Brenn method. Eight untreated root canals represented the control group (C-G). Based on the Mann-Whitney test at a confidence level of 5% (p < 0.05), the procedures of antisepsis used offered significant efficacy (p < 0.05) resulting in 100.0% of the canals free of microorganisms. In the C-G, an elevated incidence of various microbial morphotypes was confirmed in all sites of the RCS, with the presence of microbial colonies in the periapical region. In contrast, the experimental group showed a similar pattern of infection in the RCS, although less intense and a reduced level of periapical infection (p < 0.05). It was concluded that adequate instrumentation followed by the application of calcium hydroxide + chlorhexidine offered significant elimination of microorganisms.

 

Janir Alves Soares, Mario Roberto Leonardo, Léa Assed Bezerra da Silva, Mario Tanomaru Filho, Izabel Yoko Ito. Effect of rotary instrumentation and of the association of calcium hydroxide and chlorhexidine on the antisepsis of the root canal system in dogs. Braz. Oral Res. apr-jun2006;20(2)

 

Investigado por: Sara Medina Hernández. Alumna del grupo 1522-2008. FES Iztacala, UNAM

 

CONTENIDO GENERAL DEL CURSO CONTENIDO DE LA UNIDAD BIBLIOGRAFÍA  DE  ESTA  SECCIÓN ARTÍCULOS REVISADOS PALABRAS  CLAVE SECCIÓN:           

 

 

       rivasmr@servidor.unam.mx    o   rivasmr@prodigy.net.mx


     
                                                                                                                                                  
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