Evaluación del grado de microfiltración de dos resinas compuesta Bulk Fill con diferente modalidad de grabado de un adhesivo universal
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Fecha
2015
Autores
Profesor/a Guía
Facultad/escuela
Idioma
es
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Universidad Andrés Bello
Nombre de Curso
Licencia CC
Licencia CC
Resumen
Objetivo: Comparar el grado de microfiltración marginal de restauraciones
realizadas con dos resinas compuestas Bulk Fill, (BF), Filtek BF y Tetric NCeram
BF con modalidad grabado-lavado y autograbado utilizando adhesivo
universal (Single Bond Universal, 3M/ESPE, Alemania). Materiales y
métodos: En 40 terceros molares recientemente extraídos se formaron 4
grupos aleatoriamente: Filtek BF+ técnica autograbado (grupo FA), Filtek FB+
técnica grabado-lavado (grupo FG), Tetric N-Ceram FB + técnica de
autograbado (grupo TA), Tetric N-Ceram FB + técnica de grabado-lavado
(grupo TG). Un operador realizó en cada diente dos cavidades oclusales con 4
mm de profundidad, y luego se realizó la restauración de cada grupo siguiendo
las instrucciones de los fabricantes. Posteriormente cada diente fue colocado en
una solución de azul de metileno al 2% durante 12 horas, y luego se les realizó
500 ciclos de termociclado. Después en cada restauración se evaluó .bajo
microscopia óptica de 4x, el porcentaje de profundidad de penetración del
colorante a lo largo de las paredes laterales. Para el análisis de los datos se
utilizó el test de Shapiro Wilk, los test de Anova y Tukey, con un nivel de
significancia del 95%. Resultados: TA (41,81%) y TG (32,43%) presentaron
menores porcentajes de microfiltración que los grupos FA (15,55%) y FG
(12,95%). En cada resina BF no hubo diferencias significativas en el grado de
microfiltración entre grabado-lavado y autograbado (test Mann-Whitney p>0.5).
Conclusiones: Resina Tetric N-Ceram BF tiene menor microfiltración marginal
en cavidades clase I y profundidad de 4 mm que la resina Filtek BF. Las
distintas marcas de resinas BF no presentaron diferencias significativas en
microfiltración marginal en modalidad de grabado-lavado y autograbado.
Objective: Compare the degree of marginal microleakage of restorations with two composites Bulk Fill (BF), Filtek BF and Tetric-N Ceram BF with modality etch-and-rinse and self-etch using universal adhesive (Single Bond Universal 3M / ESPE, Germany ) .Materials and Methods: 40 third molars newly extracted were formed four groups randomly: Filtek BF + self-etch technique (FA group), Filtek FB + etch-and-rinse technique (FG group), Tetric N-Ceram FB + self-etch technique ( TA group), Tetric N-Ceram FB + etch-and-rinse technique (TG group). An operator performed on each tooth two occlusal cavities 4 mm deep, and then the restoration of each group was performed according to manufacturer’s instruction. Subsequently each tooth was placed in a solution of methylene blue 2% for 12 hours, and then they underwent 500 cycles of thermocycling. After every restoration was evaluated, under light microscopy with 4x, the depth percentage of dye penetration along the side walls. For data analyses was used the Shapiro-Wilk test, Anova and the Tukey test with a significance level of 95%. Results: TA (41.81%) and TG (32.43%) had the lowest percentages of microfiltration than FA groups (15.55%) and FG (12.95%). In each BF resin there were no significant differences in the degree of between etch-and-rinse and self-etch (Mann-Whitney p> 0.5). Conclusions: Resin Tetric N-Ceram BF has less marginal microleakage in Class I cavities and depth of 4 mm that Filtek BF resins. Different brands of BF no significant differences in marginal microleakage in technique of etch-and-rinse and self-etch.
Objective: Compare the degree of marginal microleakage of restorations with two composites Bulk Fill (BF), Filtek BF and Tetric-N Ceram BF with modality etch-and-rinse and self-etch using universal adhesive (Single Bond Universal 3M / ESPE, Germany ) .Materials and Methods: 40 third molars newly extracted were formed four groups randomly: Filtek BF + self-etch technique (FA group), Filtek FB + etch-and-rinse technique (FG group), Tetric N-Ceram FB + self-etch technique ( TA group), Tetric N-Ceram FB + etch-and-rinse technique (TG group). An operator performed on each tooth two occlusal cavities 4 mm deep, and then the restoration of each group was performed according to manufacturer’s instruction. Subsequently each tooth was placed in a solution of methylene blue 2% for 12 hours, and then they underwent 500 cycles of thermocycling. After every restoration was evaluated, under light microscopy with 4x, the depth percentage of dye penetration along the side walls. For data analyses was used the Shapiro-Wilk test, Anova and the Tukey test with a significance level of 95%. Results: TA (41.81%) and TG (32.43%) had the lowest percentages of microfiltration than FA groups (15.55%) and FG (12.95%). In each BF resin there were no significant differences in the degree of between etch-and-rinse and self-etch (Mann-Whitney p> 0.5). Conclusions: Resin Tetric N-Ceram BF has less marginal microleakage in Class I cavities and depth of 4 mm that Filtek BF resins. Different brands of BF no significant differences in marginal microleakage in technique of etch-and-rinse and self-etch.
Notas
Tesis (Cirujano Dentista)
Palabras clave
Filtración, Materiales Dentales, Adhesivos Dentales