ABSTRACT
Introducción: la restauración de dientes tratados endodónticamente es compleja y controversial y su pronóstico está directamente relacionado con la calidad del tratamiento endodóntico y la restauración definitiva, lo que debe asegurar un correcto sellado marginal para evitar la filtración coronaria y el posterior fracaso endodóntico. Se ha demostrado que la aplicación de un inadecuado protocolo en el tratamiento del conducto posendodoncia podría causar fracasos por el arrastre y filtración de microorganismos que se encuentran en la cavidad oral y sus productos derivados hacia la porción apical de la raíz. Muchos factores a lo largo de las fases del tratamiento endorrestaurador influyen directamente en su pronóstico: calidad del sellado apical, cantidad de gutapercha remanente, desobturación temprana o tardía, capacidad de sellado de la restauración temporal o definitiva, desinfección del conducto, entre otras. Objetivo: actualizar a profesionales acerca de los parámetros clínicos a tener en cuenta en la rehabilitación de dientes tratados endodónticamente, que implica realizar todos los procedimientos bajo un estricto protocolo y una adecuada cadena aséptica para evitar contaminación bacteriana. Métodos: la búsqueda bibliográfica se llevó a cabo utilizando los siguientes términos: restauración coronal, microfiltración, desobturación radicular, calidad y estado endondóntico; se seleccionaron los artículos que evaluaron el efecto de la calidad de la obturación radicular, la restauración coronal o ambas, en el éxito de una endodoncia. Cincuenta y tres artículos fueron identificados y revisados por dos investigadores. Los datos fueron obtenidos de bases de datos como: Hinari, Sciencedirect, Wiley interscience, SciELO y fuentes indexadas nacionales e internacionales con criterios predeterminados. Resultados: de acuerdo con los conceptos de control de infección, todos los instrumentos y el material colocado dentro del conducto radicular deben ser estériles. La prevención de la microfiltración es un aspecto importante en el éxito del diente tratado endodónticamente, que debe ser rehabilitado en un período corto entre la endodoncia y la restauración definitiva, para reducir de forma considerable la contaminación. Conclusiones: sobre la base de la evidencia disponible se puede afirmar que, independiente de la técnica o material de obturación endodóntica o tipo de restauración, es indispensable mantener la cadena aséptica a lo largo de todo el tratamiento, lo que sumado a una adecuada restauración definitiva favorece la conservación del sellado a nivel coronal y apical que minimice al máximo el riesgo de contaminación bacteriana(AU)
Introduction: the restoration of endodontically treated teeth is complex and controversial, and its prognosis is directly related to the quality of endodontic treatment and the final restoration, which should ensure a proper marginal seal to prevent coronary filtration and avoid subsequent endodontic failure. It has been shown that to handle badly a post-endodontic canal could cause failures for skiddingand microorganisms filtration which are found in the oral cavity and derived products to the apical portion of the root. Many factors during the endo-restorer treatment phase directly influence in its prognosis: apical sealant quality, residual amount of gutta-percha, early or late desobturation, sealing ability of the temporary or permanent restoration, disinfection canal among other. Objective: the purpose is to update professionals about clinical parameters to take into account in the rehabilitation of endodontically treated teeth, for this it is necessary to follow all the procedures under strict protocol and proper aseptic chain to prevent bacterial contamination. Methods: the literature search was conducted using the following terms coronal restoration, microfiltration, desobturation root, quality and endodontic status, articles that evaluated the effect of the quality of the root filling and coronal restoration or both in the success of a root canal were selected. Fifty-three articles were identified and reviewed by two investigators. Data were obtained from databases such as: Hinari, Science Direct, Wiley interscience, and indexed sources national and indexed sources national and international to predetermined criteria. Results: according to the concepts of infection control, all instruments and equipment placed inside the root canal must be sterile. Prevention of microfiltration is an important success endodontically treated tooth appearance, which must be rehabilitated in a short period of time between endodontics and final restoration to significantly reduce contamination. Conclusions: based on the available evidence, the results say that regardless of the technical or endodontic filling material or type of temporary or permanent restoration, is essential to maintain the aseptic chain along the whole treatment which added to an adequate final restoration promote the conservation sealed coronal y apical level to reduce the risk of bacterial(AU)
Subject(s)
Humans , Disinfection/methods , Tooth, Nonvital/rehabilitation , Dental Leakage/therapy , Review Literature as Topic , Databases, Bibliographic/statistics & numerical data , Tooth ApexABSTRACT
Se ha propuesto que una de las causas de fracaso del tratamiento de canales es el paso de bacterias a través del foramen apical, las que por acción directa o por activación del sistema inmune generan una respuesta inflamatoria. El sellado apical con conos de gutapercha y cemento sellador es lo que impide el paso de estas bacterias, pero en presencia de humedad sufre de solubilidad y permite la filtración bacteriana. El objetivo de este estudio fue comparar la filtración bacteriana apical que se produce después de la obturación radicular con cementos Topseal® y Tubliseal®, para lo cual se realizó un estudio de tipo experimental en que se seleccionaron 26 dientes unirradiculares recientemente extraídos, que se instrumentaron con limas Protaper Universal® hasta F3, finalizando con un ajuste apical con lima K#45, siendo irrigados permanente y abundantemente con hipoclorito de sodio al 5%. Los dientes se dividieron aleatoriamente en dos grupos que se obturaron por compactación lateral y cemento Topseal®, G1 (n=12), y cemento Tubliseal®, G2 (n=12). Las superficies externas se sellaron con esmalte para uñas, excepto los 2 mm apicales y se montaron en un dispositivo para filtración bacteriana de doble cámara, dejando sumergidos los ápices en un caldo agar bilis esculina con Enterococcus faecalis. Se incubaron a 37C por 10 semanas y se determinó la filtración bacteriana mediante la aparición de turbidez en el medio en la cámara con caldo estéril. Se determinaron los días transcurridos para verificar el crecimiento bacteriano y la cantidad de especímenes positivos, valores que se registraron y analizaron mediante la prueba estadística de X2. Las muestras obturadas con Topseal® presentaron mayor filtración bacteriana (66,64%) que las obturadas con Tubliseal® (58,31%), sin diferencias significativas (X2= 0,16), mostrando ambos altos niveles de filtración apical.
It has been proposed that one of the causes for endodontic failure is the passing of bacteria through the apical foramen, which produces an inflammatory response, either by direct action or by activating the immune system. The apical seal with gutta-percha points and sealant is what stops these bacteria from passing, but in the presence of humidity, this seal is subject to solubility and it allows bacterial leakage. The aim of this study was to compare the apical bacterial leakage that occurs after root filling using Topseal® and Tubliseal® sealers, for which an experimental study was conducted and 26 single-rooted freshly extracted teeth were selected, that were then instrumented with Protaper ® Universal until the F3 file, ending with an apical stop using a # 45 K-type file, under permanent and abundant irrigation with 5% sodium hypochlorite. The teeth were randomly divided into two groups that were filled by Lateral Condensation and Topseal®, G1 (n=12, and Tubliseal®, G2 (n=12) sealers. The external surface of the roots was covered with nail polish except the apical 2 mm and mounted in a dual chamber device for bacterial filtration, leaving the apexes immersed in bile esculin agar broth with Enterococcus faecalis obtained from clinical specimens. They were incubated at 37°C for 10 weeks and bacterial filtration was determined by the appearance of turbidity in the medium of the chamber with sterile broth. The elapsed days were measured to verify the presence of bacterial growth and the number of positive specimens, values that were recorded and analyzed using the X2 test statistic. The samples filled using Topseal® had higher bacterial filtration (66.64%) than the ones filled using Tubliseal® (58.31%), showing no significant difference ( X2=0.16), showing both high levels of apical filtration.
ABSTRACT
Objective:To discuss the effect of radiation of Nd:YAG laser in apical retrograde filling. Methods: 50 similar roots were randomly divided into 5 groups.The anatomical crowns were removed at the cementoenamel junction and the remaining roots were treated endodontically with conventional methods before the apical 2 mm were cut and a dish-like hole made in the cutting surface by high speed round bur. Except the first group,each hole were radiated by the Nd:YAG laser for different time or with different patterns and after that,the glass ionomer cement were retrofilled into the hole. A microleakage measurements were carried out and the result were measured and recorded. The hole surface was also observed under electron microscopy. Results:The leakage of the groups with Nd:YAG radiation were decreased significantly(P