Microdureza superficial in vitro de una resina bulk fill sometida a diferentes técnicas para eliminar la capa inhibida de oxígeno
Resumen
Objetivo: Comparar la microdureza superficial in vitro de una resina bulk fill
sometida a diferentes técnicas para eliminar la capa inhibida de oxígeno.
Material y métodos: Esta investigación de diseño experimental tuvo una muestra
de 80 bloques de resina Bulk Fill Tetric ® N-Ceram de 6mm de diámetro y 4mm
de profundidad, distribuidos en 4 grupos según la técnica para eliminar la capa
inhibida de oxígeno: G1: control, G2: cinta celuloide, G3: pulido y G4: glicerina. Se
evaluó la microdureza superficial en escala Vickers y posteriormente los
resultados fueron procesados con la prueba ANOVA, complementada con el Post
Hoc Tukey, con un nivel de significancia de 0.05.
Resultados: La microdureza superficial in vitro de una resina bulk fill sometida a
la técnica de cinta celuloide presentó 44.30 ± 2.36 HV, seguida del pulido con
43.18 ± 2.85 HV, luego la glicerina con 34.96 ± 2.12 HV y finalmente el grupo
control con 33.37 ± 1.54 HV. Se encontraron diferencias significativas entre las
técnicas, excepto entre la cinta celuloide y pulido (p=0.406), y entre la glicerina y
el grupo control (p=0.132).
Conclusiones: La microdureza superficial in vitro de una resina bulk fill sometida
a las técnicas para eliminar la capa inhibida de oxígeno de pulido y cinta celuloide
fue mayor que la técnica de glicerina Objective: Compare the in vitro surface microhardness of a Bulk Fill resin
subjected to different techniques to eliminate the oxygen-inhibited layer.
Materials and Methods: This experimental study included a sample of 80 Tetric®
N-Ceram Bulk Fill resin blocks, each measuring 6mm in diameter and 4mm in
depth, distributed into four groups according to the technique used to eliminate the
oxygen-inhibited layer: G1: control, G2: celluloid strip, G3: polishing, and G4:
glycerin. Surface microhardness was evaluated using the Vickers scale, and the
results were analyzed using ANOVA, followed by Tukey's Post Hoc test, with a
significance level of 0.05.
Results: The in vitro surface microhardness of the bulk-fill resin subjected to the
celluloid strip technique was 44.30 ± 2.36 HV, followed by polishing at 43.18 ± 2.85
HV, glycerin at 34.96 ± 2.12 HV, and the control group at 33.37 ± 1.54 HV.
Significant differences were found between the techniques, except between the
celluloid strip and polishing (p=0.406), and between glycerin and the control group
(p=0.132).
Conclusions: The in vitro surface microhardness of a bulk-fill resin subjected to
the polishing and celluloid strip techniques for eliminating the oxygen-inhibited
layer was higher than that of the glycerin technique
Palabras clave
Colecciones
- Estomatología [677]