ArticleJournal of pharmacy & bioallied sciences2025
Effect of Two Wavelengths of Diode Laser on the Efficacy of Teeth Whitening of Stained Teeth Using Three Different Teeth Whitening Agents: An
Article in Journal of pharmacy & bioallied sciences, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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5 authors.
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Abstract
Objective: This pilot study evaluates and compares the effectiveness of two diode laser wavelengths (810 nm and 450 nm) in activating three tooth whitening agents-40% hydrogen peroxide (HP), 20% carbamide peroxide (CP), and 12% phthalimido-peroxy caproic acid (PAP), by analyzing the posttreatment color change (ΔE). Methods: Thirty extracted human teeth were stained using a standardized tea solution and divided into three groups based on the whitening agent used. Each group was subdivided and treated with either 810 nm or 450 nm diode lasers. Color change was evaluated using a spectrophotometer at three stages: baseline (T0), post-staining (T1), and post-whitening (T2). Results: All groups exhibited a decrease in ΔE post-whitening. Group 2B (20% CP+450 nm laser) showed the most significant improvement, with the highest ΔE reduction from T1 to T2 ( Conclusion: 450 nm diode laser in combination with 20% CP provided the most effective teeth whitening result. Laser wavelength significantly influenced the activation efficacy of teeth whitening agents.
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