Análisis de pH y concentración de peróxido de hidrógeno en geles blanqueadores de uso profesional
Resumen
El objetivo del presente estudio in vitro, fue medir el pH y la concentración de peróxido de hidrogeno de geles blanqueadores de uso profesional y comparar dichos valores con los especificados por el fabricante. Fueron seleccionados diferentes agentes blanqueadores de uso profesional cuyo agente activo es el peróxido de hidrógeno en altas concentraciones. El pH y la concentración de peróxido de hidrógeno fueron analizados de acuerdo con lo establecido en la norma internacional ISO 28399 y la norma para agentes blanqueadores de la Asociación Dental Americana. En el análisis de los resultados de las mediciones de pH se encontraron diferencias estadísticamente significativas entre los valores de todos los productos analizados. Todos los grupos mostraron una disminución estadísticamente significativa en la concentración de H2O2 medida experimentalmente, con respecto a la especificada por su respectivo fabricante. Las discrepancias observadas pueden afectar la eficacia de blanqueamiento esperada tanto por el paciente como por el dentista, y debe ser considerado a la hora de establecer un plan de tratamiento.
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