The use of hydrogen peroxide (H2O2) for conventional bleaching was introduced way back in 1884. Today bleaching products are often found in the form of gels containing various concentrations of carbamide peroxide and H2O2depending on the application and methods. Laser-assisted tooth bleaching has proven faster and efficient results. This case report emphasizes on the efficacy of diode laser for tooth bleaching. Opalescent® (Potassium nitrate and fluoride) was used as a bleaching gel. Diode laser (810 nm) was used to irradiate the tooth surfaces and microabrasion was carried out. Visible reduction in tooth discoloration was seen after a period of 3 weeks. On the basis of the results obtained, diode laser can be considered as an efficient and reliable treatment modality compared to conventional bleaching.