Evaluación de obturación radicular a nivel apical utilizando conos de gutapercha de diferente conicidad
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Archivos
Fecha
2012
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
El propósito de este estudio in vitro fue evaluar la calidad de la obturación radicular en
canales de premolares inferiores obturados con conos de gutapercha de conicidad 0.05 y 0.02
Materiales y métodos: Cincuenta y siete premolares mandibulares se instrumentaron con
sistema MTWO y se dividieron en 2 grupos al azar. Se realizó la obturación de los canales de la
siguiente manera: Grupo A; se adaptó un cono principal de conicidad 0,05 y Grupo 8; se adaptó
un cono principal 0,02. En ambos grupos se realizó técnica de condensación lateral. Después
de 7 días a 37°C y 100% humedad los dientes se embebieron en resina acrílica y se cortaron
transversalmente a 2 y 4 mm de apical. Las secciones se fotografiaron bajo microscopio 40x y
mediante sistema lmage Tool se midió el área ocupada por gutapercha, cemento sellador y
espacios vacíos de cada porción. Se realizó análisis estadístico para muestras pareadas de
Mann Whitney.
Resultados: A los 2 mm del ápice el porcentaje de gutapercha para el Grupo A (cono 0,05) fue
de 52,5%, el porcentaje de cemento fue de 28,4% y los espacios vacíos fueron un 3,14%. Para
el grupo 8 (cono 0,02) el área ocupada por gutapercha fue de 68,66%, el área ocupada por
cemento fue de 29,6% y el porcentaje de espacios vacíos fue 5,8%. En el corte a los 4 mm el
porcentaje de gutapercha para el Grupo A fue de 69%, el cemento ocupó un área de 22,33%
mientras que los espacios vacíos fueron el 5%. Para el grupo 8 los porcentajes de gutapercha,
cemento y espacios vacíos fue de 74,7, 21 y 6,32% respectivamente. No se encontraron
diferencias estadísticamente significativas entre ambos grupos.
Conclusiones: La obturación del canal radicular con conos de mayor conicidad (0,05) presenta similar calidad de obturación en comparación al uso de conos convencionales de conicidad 0,02.
The purpose of this in vitre study was to evaluate the quality of the root filling in canals of premolars inferiors sealed with gutta-percha cone tapered 0.05 and 0.02 Materials and Methods: Fifty seven mandibular premolars were instrumented with MTWO system and divided in two groups randomly. We performed the sealing canals as follows: Group A; adapted 0,05 tapered master cone. Group B; adapted 0.02 tapered master cone. In both groups was performed lateral condensation technique. After 7 days at 37 oc and 100% of humidity. Teeth were embedded in acrylic resin and cross sectionaly at 2 and 4 mm from the apex. Sections were photographed under 40x microscope and using lmage Tool system measured the area occupied by gutta-percha, sealer and voids in each section. Statistical analysis was performed for paired samples of Mann Whitney. Results: At 2 mm from the apex the percentage of gutta-percha for the Group A (cone 0.05) was 52.5%, cement was 28.4% and voids were 3.14%. For group B (cone 0.02) the area occupied by gutta-percha was 68.66%, cement was 29.6% and the percentage of voids was 5.8%. In the section at 4 mm from the apex. Gutta-percha percentage for Group A was 69%, cement occupied an area of 22.33% while the voids were 5%. For group B percentages of guttapercha, cement and voids was 74.7%, 21% and 6.32% respectively. Thus, there was no statistically significant difference between groups A and B. Conclusions: The root filling Canals prepared with 0.05 tapered master cone presents equivalent quality of sealing that produced by the lesser tapered cones (0.02).
The purpose of this in vitre study was to evaluate the quality of the root filling in canals of premolars inferiors sealed with gutta-percha cone tapered 0.05 and 0.02 Materials and Methods: Fifty seven mandibular premolars were instrumented with MTWO system and divided in two groups randomly. We performed the sealing canals as follows: Group A; adapted 0,05 tapered master cone. Group B; adapted 0.02 tapered master cone. In both groups was performed lateral condensation technique. After 7 days at 37 oc and 100% of humidity. Teeth were embedded in acrylic resin and cross sectionaly at 2 and 4 mm from the apex. Sections were photographed under 40x microscope and using lmage Tool system measured the area occupied by gutta-percha, sealer and voids in each section. Statistical analysis was performed for paired samples of Mann Whitney. Results: At 2 mm from the apex the percentage of gutta-percha for the Group A (cone 0.05) was 52.5%, cement was 28.4% and voids were 3.14%. For group B (cone 0.02) the area occupied by gutta-percha was 68.66%, cement was 29.6% and the percentage of voids was 5.8%. In the section at 4 mm from the apex. Gutta-percha percentage for Group A was 69%, cement occupied an area of 22.33% while the voids were 5%. For group B percentages of guttapercha, cement and voids was 74.7%, 21% and 6.32% respectively. Thus, there was no statistically significant difference between groups A and B. Conclusions: The root filling Canals prepared with 0.05 tapered master cone presents equivalent quality of sealing that produced by the lesser tapered cones (0.02).
Notas
Tesis (Cirujano Dentista, Especialización en Endodoncia)
Palabras clave
Endodoncia., Canal Radicular, Tratamiento, Gutapercha, Materiales Dentales, Eficacia