Comparación de la remoción de hidróxido de calcio con irrigación sónica versus ultrasónica: evaluación microscópica
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Fecha
2015
Profesor/a Guía
Facultad/escuela
Idioma
es
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Universidad Andrés Bello (Chile)
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Licencia CC
Licencia CC
Resumen
Objetivo: El presente estudio tiene por finalidad determinar el protocolo de remoción de hidróxido de calcio [(CaOH)2] más eficiente entre irrigación sónica y ultrasónica en conductos radiculares de premolares y raíces distales de molares inferiores. Metodología: 89 conductos radiculares entre molares y premolares fueron preparados utilizando el sistema de limas mecanizadas Pro Taper Next® (X1 y X2) con hipoclorito de sodio al 5.25%. Luego estos fueron medicados utilizando CaOH Ultracal XS® mezclado con tinta china verde para facilitar su medición al microscopio. Posteriormente estos fueron divididos en 4 grupos: protocolo de remoción ultrasónica (grupo A = 42 dientes), sónica (grupo B = 41 dientes), convencional (grupo C= 4 dientes) y un grupo de control de CaOH (2 dientes). Luego de la remoción estos fueron seccionados a nivel de su raíz en sentido longitudinal mediante el uso de un disco diamantado y movimientos de palanca para separar la raíz en dos dejando visible el conducto en el centro. Posteriormente mediante el uso del disco diamantado se desgastó la superficie externa de cada mitad radicular obtenida, hasta tener un espesor de 1 mm aproximadamente para ser observadas en el microscopio óptico Olympus CX31.Resultados: Se observó un menor porcentaje de CaOH remanente en todos los tercios estudiados de dientes en los que se utilizó irrigación ultrasónica para la remoción. Conclusiones: El protocolo de remoción ultrasónica fue más eficaz que el sónico. Ningún protocolo investigado logró remover el CaOH en su totalidad, observándose una mayor cantidad en el tercio apical.
Objective: The present study aims to determine the most efficient removal protocol of calcium hydroxide [(CaOH) 2] between sonic and ultrasonic irrigation from root canals of premolars and distal roots of lower molars. Methodology: 89 root canals from premolars and molars were prepared using mechanized system files Pro Taper Next®(X1 and X2) with sodium hypochlorite 5.25%. Then these were medicated using CaOH Ultracal® mixed with green Chinese ink to facilitate the measuring in the microscope. Later these were divided into 4 groups: Ultrasonic removal protocol (group A = 42 teeth), sonic (group B = 41 teeth), conventional (group C = 4 teeth) and a control group of CaOH (2 teeth). After removal, these were sectioned at the level of its root longitudinally using a diamond disc and lever movements to separate the root into two leaving visible the canal in the center. Subsequently using the diamond disc, the outer surface of each half worn out, to have a thickness of approximately 1 mm to be observed in the light microscope Olympus CX31. Results: A lower percentage of remaining CaOH was observed in all studied thirds of teeth in which ultrasonic irrigation was used for removal. Conclusions: The ultrasonic removal protocol was more effective than sonic. None of the investigated protocols was able to completely remove the CaOH, observing a greater amount in the apical third.
Objective: The present study aims to determine the most efficient removal protocol of calcium hydroxide [(CaOH) 2] between sonic and ultrasonic irrigation from root canals of premolars and distal roots of lower molars. Methodology: 89 root canals from premolars and molars were prepared using mechanized system files Pro Taper Next®(X1 and X2) with sodium hypochlorite 5.25%. Then these were medicated using CaOH Ultracal® mixed with green Chinese ink to facilitate the measuring in the microscope. Later these were divided into 4 groups: Ultrasonic removal protocol (group A = 42 teeth), sonic (group B = 41 teeth), conventional (group C = 4 teeth) and a control group of CaOH (2 teeth). After removal, these were sectioned at the level of its root longitudinally using a diamond disc and lever movements to separate the root into two leaving visible the canal in the center. Subsequently using the diamond disc, the outer surface of each half worn out, to have a thickness of approximately 1 mm to be observed in the light microscope Olympus CX31. Results: A lower percentage of remaining CaOH was observed in all studied thirds of teeth in which ultrasonic irrigation was used for removal. Conclusions: The ultrasonic removal protocol was more effective than sonic. None of the investigated protocols was able to completely remove the CaOH, observing a greater amount in the apical third.
Notas
Tesis (Cirujano Dentista)
Palabras clave
Hidróxido de Calcio - Pruebas, Boca - Irrigación Sanguínea, Remoción