Más allá de la luz: evaluación de las características de unidades de fotopolimerización LED de bajo costo para la polimerización de resinas compuestas
Palabras clave:
Luces de fotopolimerización, luz, Polimerización, Ensayos mecánicos, Resinas compuestasResumen
Objetivo: Este estudio tuvo como objetivo evaluar la irradiancia (mW/cm²), el espectro de emisión (mW/nm), la exposición radiante (J/cm²), el perfil del haz y la profundidad de curado de una resina compuesta fotopolimerizada utilizando diferentes unidades de fotopolimerización por LED (LCUs) de bajo costo. Materiales y Métodos: Se evaluaron los siguientes dispositivos: Dental Wireless; LY-A180; LY-B200. Las unidades VALO (polionda) y Elipar DeepCure-L (monoonada) se utilizaron como grupos control. La irradiancia, el espectro de emisión y la exposición radiante se evaluaron utilizando el calibrador de resina MARC. La prueba de microdureza Knoop se empleó para evaluar la profundidad de curado y el módulo elástico. Los datos de profundidad de curado se analizaron mediante las pruebas de Shapiro–Wilk, Levene, ANOVA, Tukey HSD (α = 0,05) y análisis de regresión lineal múltiple. Resultados: VALO y Elipar DeepCure-L mostraron una salida radiante homogénea. El análisis ANOVA indicó que las LCUs y la profundidad de la restauración (p < 0,001) fueron significativas, pero la interacción no lo fue. El análisis de regresión lineal múltiple mostró una relación significativa entre el módulo elástico, la irradiancia y la profundidad de la restauración (p = 0,350). Conclusiones: Las pruebas de profundidad de curado demostraron que las LCUs de menor costo evaluadas presentaron resultados satisfactorios; sin embargo, al comparar todas las variables, mostraron un rendimiento inferior en comparación con las LCUs utilizadas como control.
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