Health education, whether face-to-face or using digital tools, acts as an interdisciplinary process of knowledge construction. The Serviço Social do Comércio – Rio de Janeiro (Social Service of Commerce - Rio de Janeiro) (Sesc-RJ) has health prevention as its premise, valuing educational activities throughout the clinical care of the patient. With the COVID-19 pandemic, social media stood out as a tool to maintain these activities. This study intends to carry out a research on the dissemination of health promotion information by Sesc RJ Dentistry, through the Instagram profiles @sescrio and @sescsantaluziarj in publications in the format of reels, and to evaluate the importance of this practice even after the return of face-to-face activities. A metric evaluation regarding the number of posts in the format of reels and their views was performed from May 2021 to October 2022; in addition to a survey regarding the monthly average of face-to-face attendances in health education promoted by dental clinic of Sesc Santa Luzia in 2019 and 2022. All these data were extracted from the Sesc statistical system, which are accounted for in the month following production, based Public Domain information and available in aggregate form, without individual identification. Sesc RJ has an amount of 78 publications and a monthly average of 45623 views. And the number of publications regarding Sesc Santa Luzia is 68 and 5138, respectively. The monthly average of face-to-face dental appointment at Sesc Santa Luzia in 2019 was 2557 while from March to October 2022, the number of patients was 2583. According to the results obtained, it was ascertain that the alternative of expanding knowledge in health through the technological approach was successful and that it should be maintained even after the end of social isolation. Thus, social media reinforced health education in the dissemination of knowledge.