Caracterización de la capa híbrida en dentina intraradicular pretratada con hipoclorito de sodio al 5,25% usando dos agentes cementantes con sistemas adhesivos de auto y grabado convencional

Alfredo Vargas-Barreto, Eduardo Navarro-Jiménez, Adalgisa Alcocer-Olaciregui, Mohamed Daher-Joujah, María Osorio-Gonzalez, Victoria Correa-Monroy

Resumen


Introducción y objetivo: En la actualidad, la rehabilitación de dientes tratadosendodónticamente representa una gran demanda para el ejercicioprofesional del rehabilitador oral. Por esta razón, surge la necesidad deidentificar y manejar los procesos básicos y los determinantes biológicosque influencian un buen proceso de adhesión dentinal. El objetivo de esteestudio fue caracterizar la capa híbrida en dentina intraradicular pretratadacon hipoclorito de sodio (NaClO) al 5,25% usando dos agentes cementantescon sistemas adhesivos de auto y grabado convencional. Materiales y métodos: Se seleccionaron 40 dientes premolares unirradiculares que fuerondistribuidos aleatoriamente en 4 grupos. Grupo A (dentina pretratada conNaClO al 5,25% y cementado con cemento Relyx® Ultimate (3M), grupo B(control del grupo A, sin pretratamiento de dentina); grupo C (dentina pretratadacon NaClO al 5,25% y cementado con cemento paraCore®) y grupoD: Control del grupo C, sin pretratamiento de dentina. Los dientes fueronseccionados transversalmente y se analizó la presencia de capa híbrida enlos tercios cervical y medio radicular a través de microscopia electrónicade barrido. Resultados: Se encontraron diferencias estadísticamente significativasen el grosor de la capa híbrida de dientes pretratados con NaClOal 5,25% y cementados con paraCore® en comparación a los cementadoscon Relyx® ultimate valor p = 0,023 para la prueba de Anova.

 

Characterization of hybrid layer intraradicular dentin pretreatedwith sodium hypochlorite 5.25% using two cementing agents withauto adhesives and conventional engraving

Introduction and objective: At present, the rehabilitation of endodontically treatedteeth is a huge demand for professional in oral rehabilitation. For this reason, theneed to identify and manage the core processes and biological determinants thatinfluence a good process of dentinal adhesion. The aim of this study was to characterizethe hybrid layer in dentin intraradicular pretreated with sodium hypochlorite(NaClO) 5.25 % using two cementing agents with self adhesive systems and conventionaletching. Materials and Methods: 40 single-rooted premolar teeth which wererandomized into 4 groups were selected. Group A: dentin pretreated with 5.25% NaClO5.25% and RelyX® Ultimate cemented with cement (3M). Group B: (control group A,without pretreated dentin). Group C: dentin pretreated with NaClO 5.25% and cementedwith cement ParaCore® and group D: Control group, not pretreated of dentin.The teeth were transected and the presence of hybrid layer was analyzed in cervicalthirds and root medium by scanning electron microscopy. Results: Statisticallysignificant differences in the thickness of the hybrid layer of teeth pretreated withNaClO 5.25% met and bonded with paraCore® compared to cementated with RelyX®Ultimate value p = 0.023 Anova test.

Keywords: cementing agents, oral rehabilitation, hybridized dentin pretreated layer.


Palabras clave


agentes cementantes, rehabilitación oral, capa híbrida, dentina pretratada.

Citas


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