The demand for treatments aimed at aesthetics in dentistry has been growing more and more and with this comes the need to improve procedures and treatments so that there is greater effectiveness, quality and longevity in them. One of the means of contributing to the evolution is the research and execution of comparative tests, such as this single-blind randomized study that aims to evaluate the home whitening technique performed in dental practice and verify its effectiveness and patient satisfaction. The procedures were performed in 5 patients and all performed in a dental clinic. The technique with a tray and the use of a 6% hydrogen peroxide gel was used. Photographs were taken and analyzes performed with the aid of an appropriate scale. Patients received a questionnaire to assess treatment-related perception. The results showed that, within the parameters analyzed, at-home bleaching proved to be safe and effective. All patients showed improvement in tooth color. In the case of sensitivity, it was reported by 20% of patients, but efficiently controlled with professional intervention. Regarding the perception, the treatment was well evaluated by most patients, however, they reported wanting to perform the treatment with another method and the method mentioned was the whitening performed in the office using the photo-assisted method