Estudio comparativo para determinar la longitud de trabajo final utilizando radiografía convencional y localizador apical
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Archivos
Fecha
2012
Autores
Profesor/a Guía
Facultad/escuela
Idioma
es
Título de la revista
ISSN de la revista
Título del volumen
Editor
Universidad Andrés Bello
Nombre de Curso
Licencia CC
Licencia CC
Resumen
La determinación de la longitud de trabajo (L T) es una de las etapas más
importantes en el tratamiento endodóntico. Tradicionalmente se ha determinado
usando radiografías convencionales periapicales, pero en los últimos años se han
incorporado los localizadores apicales y gracias a ellos obtenemos mejores
resultados. El objetivo de este estudio fue comparar la precisión del localizador
apical Root ZX 11 en la determinación de la L T con la radiografía convencional. La
muestra incluyó 60 conductos, en pacientes de alumnos de pregrado de la
asignatura de endodoncia de cuarto año de la Universidad Andrés Bello, año
2012.
Primero se determino la L T con el método tradicional (radiográfico), la cual
se obtiene restando 1 mm. a la longitud real del diente. La segunda medición se
obtuvo utilizando el localizador apical Root ZX 11. Los valores obtenidos fueron
analizados mediante la prueba t-student para determinar si aquella diferencia era
significativamente diferente de O. Los resultados de la prueba t-student, arrojaron
con un 95% de confianza que la variable es significativamente distinta de O, lo que
significa que los resultados de ambos modelos son diferentes. La L T entregado
por el método visual (radiográfico) coincide en un 40% con el método electrónico.
Actualmente, los localizadores apicales electrónicos pueden determinar el
área CDC con una precisión mayor al 90%, pero todavía tienen ciertas
limitaciones 13.
Ninguna técnica individual es verdaderamente satisfactoria, es por esto, que
el uso adecuado y en conjunto, ambos métodos ciertamente ayudarían al
profesional para obtener el éxito en el tratamiento endodóntico.
The working length determination (WL) is one of the most important steps in the endodontic treatment. Traditionally it has been determined by using conventional periapical radiography, but in recent years the apex locators are the most commonly used. The objective of this study was to compare the accuracy of Root ZX 11 apex locator with the conventional periapical radiography in determining the final WL. The sample was performed in 60 dental root canals and 120 periapical radiographs were measured in patients of undergraduate students in the fourth year of endodontic course at the Andrés Bello University, 2012. First, the WL was determined with the traditional method, which is achieved by subtracting 1 mm. to the actual length of the tooth. The second measurement was obtained using the Root ZX 11 apex locator. The values accomplished were analyzed by t-student test in order to determine if that difference was significantly distinct from O. The results of the t-student test showed with 95% confidence that the variable is significantly different from O, which means that the results of both models are dissimilar. The WL given by the visual method (radiographic) matches in a 40% with the electronic method. Nowadays, modern electronic apex locators can determine the CDJ area with more than 90% precision, but yet have sorne limitations13 No single technique is truly satisfactory; this is why the proper use of both methods together certainly would help the professional to succeed in the endodontic treatment.
The working length determination (WL) is one of the most important steps in the endodontic treatment. Traditionally it has been determined by using conventional periapical radiography, but in recent years the apex locators are the most commonly used. The objective of this study was to compare the accuracy of Root ZX 11 apex locator with the conventional periapical radiography in determining the final WL. The sample was performed in 60 dental root canals and 120 periapical radiographs were measured in patients of undergraduate students in the fourth year of endodontic course at the Andrés Bello University, 2012. First, the WL was determined with the traditional method, which is achieved by subtracting 1 mm. to the actual length of the tooth. The second measurement was obtained using the Root ZX 11 apex locator. The values accomplished were analyzed by t-student test in order to determine if that difference was significantly distinct from O. The results of the t-student test showed with 95% confidence that the variable is significantly different from O, which means that the results of both models are dissimilar. The WL given by the visual method (radiographic) matches in a 40% with the electronic method. Nowadays, modern electronic apex locators can determine the CDJ area with more than 90% precision, but yet have sorne limitations13 No single technique is truly satisfactory; this is why the proper use of both methods together certainly would help the professional to succeed in the endodontic treatment.
Notas
Tesis (Odontología)
Palabras clave
Radiografía Dental, Tratamiento endodóntico, Técnica radiográfica, Optimización de Procesos