Office bleaching procedures consist of the application of a bleaching gel that contains a respectively high percentage of H2O2 onto the teeth, followed by the application of heat to the gel using one of various possible light sources to accelerate the dissociation of H2O2 into oxygen radicals. The Er:YAG laser has been described as the most recent laser wavelength to be used for office bleaching treatments. This report presents the use of the Er:YAG laser (LightWalker, TouchWhiteTM Protocol, Fotona) for office bleaching. A relatively low pulse energy (40 mJ), long pulse duration (VLP) and the large spot size of the handpiece (R17) used ensure the safety of dental hard tissues by reducing the fluence of laser pulses below the ablation threshold of enamel and dentin, as well as below the ablation threshold of water. In this clinical case, the Er:YAG laser-assisted bleaching that was performed according to the TouchWhiteTM protocol resulted in an effective and safe treatment.