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    Teeth bleaching with low concentrations of hydrogen peroxide (6%) and catalyzed by LED blue (450 ± 10 nm) and laser infrared (808 ± 10 nm) light for in-office treatment: Randomized clinical trial 1-year follow-up

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    Date
    2017
    DOI
    10.1111/jerd.12318

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    Author
    Vildósola P.
    Bottner J.
    Avalos F.
    Godoy I.
    Martín J.
    Fernández E.
    Abstract
    Objectives: The aim of this study was to evaluate color longevity after a year of in-office bleaching with gel (6% hydrogen peroxide HP, LED blue/laser infrared activation system) compared to a 35% control concentration in a split-mouth study model. Materials and Methods: Thirty-one patients were initially treated. The bleaching procedure with 6% or 35% gel HP was performed randomly in the upper half arcade of each patient. The color was measured at baseline and at 1 week, 1 month, and 1 year using the spectrophotometer Vita Easyshade, Vita Bleached, and Vita classical Shade guide organized by value. During the 1-year recall, the color was assessed before and after dental prophylaxis. Results: Only 27 patients were assessed in the 1-year recall. There was a significant difference in the ΔE between the two groups at all times assessed (P <.011). The ΔL, Δa, and Δb showed significant difference between both groups at all assessed times (P <.038). There was no significant difference between the ΔSGU at all times (P >.05) except for the Vita bleachedguide postprophylaxis comparison (P <.05). Conclusion: The two compounds remained effective at 1 year. When objectively evaluated, color difference between groups was found, not seen when subjectively determined. CLINICAL SIGNIFICANCE: A low concentration hydrogen peroxide bleaching agent can reach good clinical results at 1 year of follow-up. © 2017 Wiley Periodicals, Inc.
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    LA UNIVERSIDAD
    • Aseguramiento de Calidad
    • Internacional
    • Vinculación con el Medio
    • Más Transparencia
    • Acreditación
    • Reglamentos e instructivos
    • Reclamos y Sugerencias
    FACULTADES
    • Administración y Negocios
    • Arquitectura y Construcción
    • Ciencias de la Salud
    • Ciencias Sociales y Humanidades
    • Derecho
    • Educación
    • Ingeniería
    INVESTIGACIÓN
    • Estructura
    • Comités de Ética
    • Institutos de Investigación
    • Centros de Investigación
    • Grupos de Investigación
    • Docentes Investigadores
    POSTGRADOS
    • Postgrados
    • Doctorados
    • Magíster
    • Especialidades
    • Escuela Internacional
    • Escuela Alta Dirección