Systemic sclerosis (SSc) is a rare chronic autoimmune disease characterized by vascular abnormalities and connective tissue disorders. In 2021, the multidisciplinary team of the university hospital recognized a demand for oral health information among SSc patients. This study aims to describe the development of an SSc oral health booklet and its validation by people with SSc. For the development of the booklet, the project creators employed the action research methodology involving ten stages. SSc patients evaluated the material by filling out a digital form. One hundred and thirty-one people with SSc evaluated the booklet. It received an average score of 9.73 (SD: 0.80) in relevance, 9.82 (SD: 0.47) in explicitness, and 9.49 (SD: 0.93) in aesthetics. The final version was emailed to the participants and posted on social media. This is the first booklet that deeply addresses these issues in Portuguese and constitutes a soft technology to instruct and assist patients with SSc. The production of high-quality educational materials on oral health for patients with SSc is necessary. The online distribution increased its reach and had great importance in the context of the COVID-19 pandemic. •Systemic sclerosis orofacial abnormalities impose challenges to health professionals.•Health education enables patients to self-manage systemic sclerosis.•Educational booklets must use simple language and illustrations to improve patients' understanding.•Patients' suggestions are essential to improve educational booklets.•The online distribution of educational materials improves their reach.