Work

Effect of Two Wavelengths of Diode Laser on the Efficacy of Teeth Whitening of Stained Teeth Using Three Different Teeth Whitening Agents: An In Vitro Study

Year: 2025

Type: article

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: < 0.05). 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.

Source: Journal of Pharmacy And Bioallied Sciences

DOI: 10.4103/jpbs.jpbs_1298_25

Authors: D S Anjana, Rakesh R. Rajan, Anju Varughese, Sapna C. Mudappa, Kaushik Haridas

Institution: Amrita Vishwa Vidyapeetham

Language: English

Topic: Dental Erosion and Treatment

Subfield: Orthodontics

Field: Dentistry

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $250