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Retratamiento de Selladores Biocerámicos con un Disolvente Novedoso: Disolución, Permeabilidad y Efectos Dentinarios

Jemma Hanson¹, Michelle Wu¹, Ajay Shakya²

¹Department of Endodontics, Texas A&M College of Dentistry, Dallas, Texas.

Journal of endodontics

|January 27, 2026

Resumen

El disolvente para endodoncia (ESS) y el ácido etilendiaminotetraacético (EDTA) disolvieron eficazmente el sellador biocerámico, pero todos los disolventes probados lograron una permeabilidad del 100% del conducto. La elección del disolvente no afecta los resultados clínicos para mantener la permeabilidad después de la obturación del conducto radicular.

Área de la Ciencia:

Endodoncia
Ciencia de los Materiales Dentales
Biomateriales

Sus antecedentes:

Los selladores biocerámicos se utilizan cada vez más en la terapia de conductos radiculares.
La eliminación eficaz de los restos de sellador es crucial para el retratamiento y el mantenimiento de la permeabilidad del conducto.
La eficacia del disolvente y la compatibilidad con la dentina varían, lo que requiere estudios comparativos.

Objetivo del estudio:

Evaluar la eficacia del disolvente para endodoncia (ESS), hipoclorito de sodio (NaOCl), ácido etilendiaminotetraacético (EDTA) y cloroformo (CHCl3) en la disolución de sellador biocerámico.
Evaluar el impacto de estos disolventes en el mantenimiento de la permeabilidad apical en conductos radiculares obturados con sellador biocerámico.
Examinar los efectos de los disolventes en la estructura de la dentina.

Principales métodos:

Se sumergieron especímenes de sellador biocerámico en forma de disco en disolventes para medir la pérdida de peso.
Se obturaron dientes de un solo conducto y se registró el tiempo para recuperar la permeabilidad apical utilizando disolventes.
Se evaluaron los cambios dentinarios mediante microscopía electrónica de barrido después de la irrigación.

Principales resultados:

ESS y EDTA demostraron la mayor disolución de sellador biocerámico, superando significativamente a NaOCl y CHCl3.
Todos los irrigantes probados lograron con éxito una permeabilidad apical del 100% sin diferencias significativas en el tiempo.
La microscopía electrónica de barrido no reveló erosión dentinaria; ESS y EDTA eliminaron eficazmente la capa de raspado, a diferencia de NaOCl y CHCl3.

Conclusiones:

ESS y EDTA son muy eficaces para disolver selladores biocerámicos y al mismo tiempo preservar la integridad de la dentina.
A pesar de las diferencias en la eficacia de la disolución, todos los disolventes evaluados garantizan una permeabilidad completa del conducto.
La selección del disolvente no parece influir en el logro clínico de la permeabilidad en el retratamiento endodóntico.

Palabras clave:

Disolvente para endodoncia Ácido etilendiaminotetraacético Hipoclorito de sodio Cloroformo Sellador biocerámico Retratamiento de conductos radiculares Permeabilidad apical Integridad de la dentina

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