[Ph stability of four hydrogen peroxide bleaching gels at different time intervals].

Rev Cient Odontol (Lima) · 2021 · PMC10919821 · PMID 38465270

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showed a trendno p-value reported

Results: The pH values showed a trend to decreasing from the initial time of application to the final time, except for the DA group, which showed increasing pH values over time.

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