Evaluación de la fuerza adhesiva dentaria en diente tratado endodónticamente utilizando técnica de grabado total
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Fecha
2012
Autores
Profesor/a Guía
Facultad/escuela
Idioma
es
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Universidad Andrés Bello
Nombre de Curso
Licencia CC
Licencia CC
Resumen
El presente estudio in vitro evaluó la fuerza adhesiva dentinaria en restauraciones de resina compuesta de dientes tratados endodónticamente, mediante test de microtracción
Objetivo: Comparar los valores de adhesión obtenidos mediante pruebas de microtracción a través de dos técnicas de grabado ácido en diente tratado endodónticamente.
Materiales y Método: Se utilizaron 28 premolares sanos recientemente extraídos los cuales fueron divididos aleatoriamente en 2 grupos de estudio, a 14 premolares se les efectuó irrigación con hipoclorito de sodio y a los 14 restantes se les efectuó irrigación con Clorhexidina. Habiendo realizado las endodoncias pertinentes fueron descoronados para subdividir los grupos según la técnica de grabado total a utilizar (1 tiempo o 2 tiempos de grabado) y posteriormente aplicar un sistema adhesivo de quinta generación y restauración con resina compuesta. Con los dientes restaurados se cortaron mediante una máquina de precisión para obtener bastones de 1mm de sección transversal por 6 mm de largo los cuales fueron traccionados hasta fracturarse en la máquina micro tensile tester bisco.
Resultados: Grupo A: As1 media 26,86 (Mpa), As2 media 30, 15 (MPa). (p=0,1148). Grupo B: Bs1 media 33,42 (MPa), Bs2 media 34,65 (Mpa) (p=0,5790). Al comparar los valores obtenidos por Irrigante endodóntico, Grupo A media 28,5 (Mpa), Grupo B 34,032 (MPa) (p=0,0004). Conclusión: la técnica de acondicionamiento de 2 tiempos de grabado logra modificaciones nominales en la adhesión dentinaria de diente tratado endodónticamente con Hipoclorito y Clorhexidina. Sin embargo no son estadísticamente significativos en base a la metodología aplicada. Por otro lado el irrigante endodóntico Gluconato de Clorhexidina logra mejor comportamiento adhesivo que el Hipoclorito de Sodio frente a pruebas de micro tracción.
This in vitro study evaluated the dentin bond strength of composite resin restorations of endodontically treated teeth by microtensile test. Objective: To compare the adhesion values obtained by microtensile tests using two etching techniques in endodontically treated tooth. Materials and Methods: A total of 28 recently extracted healthy premolars which were randomly divided into two study groups, 14 premolars were underwent irrigation with sodium hypochlorite and the remaining 14 were underwent irrigation with chlorhexidine. Having conducted the relevant root canals was cut of the crowns to subdivide the groups according to total etch technique to use (1 time or 2 times recorded) and follow with a fifth-generation adhesive system and composite resin restoration. With the restored teeth were cut using a precision machine for 1mm poles transverse section 6 mm long which were to fracture in tension members micro tensile tester machine Bisco. Results: The averages values was Group A: As1 26.86 (Mpa), As2 30.15 (MPa) (p = 0.1148). Group B: Bs1 33.42 (MPa), Bs2 34.65 (Mpa) (p = 0.5790). By comparing the values obtained by Irrigant Endodontic Group A 28.5 (MPa), Group B 34.032 (MPa) (p = 0.0004). Conclusion: the art of conditioning achieved two etching times nominal changes in tooth dentin bonding endodontically treated with hypochlorite and chlorhexidine. However not statistically significant based on the methodology applied. Furthermore endodontic irrigant Chlorhexidine Gluconate adhesive achieves better performance Sodium Hypochlorite micro tensile tests.
This in vitro study evaluated the dentin bond strength of composite resin restorations of endodontically treated teeth by microtensile test. Objective: To compare the adhesion values obtained by microtensile tests using two etching techniques in endodontically treated tooth. Materials and Methods: A total of 28 recently extracted healthy premolars which were randomly divided into two study groups, 14 premolars were underwent irrigation with sodium hypochlorite and the remaining 14 were underwent irrigation with chlorhexidine. Having conducted the relevant root canals was cut of the crowns to subdivide the groups according to total etch technique to use (1 time or 2 times recorded) and follow with a fifth-generation adhesive system and composite resin restoration. With the restored teeth were cut using a precision machine for 1mm poles transverse section 6 mm long which were to fracture in tension members micro tensile tester machine Bisco. Results: The averages values was Group A: As1 26.86 (Mpa), As2 30.15 (MPa) (p = 0.1148). Group B: Bs1 33.42 (MPa), Bs2 34.65 (Mpa) (p = 0.5790). By comparing the values obtained by Irrigant Endodontic Group A 28.5 (MPa), Group B 34.032 (MPa) (p = 0.0004). Conclusion: the art of conditioning achieved two etching times nominal changes in tooth dentin bonding endodontically treated with hypochlorite and chlorhexidine. However not statistically significant based on the methodology applied. Furthermore endodontic irrigant Chlorhexidine Gluconate adhesive achieves better performance Sodium Hypochlorite micro tensile tests.
Notas
Tesis (Cirujano Dentista, Especialización en Clínica Integral del Adulto)
Palabras clave
Materiales Dentales, Adhesivos