Background <p>The following article draws on the results of the questionnaire study published in 2025 on “Recording work activity characteristics and job satisfaction among dental nurses” with 1097 respondents, which show that mental strain has a&#xa0;relevant intersection with job satisfaction and represents a&#xa0;dimension of work design. Even though the greatest influence on job satisfaction lies with the supervisor, this study aims to show how dental nurses can contribute to reducing their own mental strain.</p> Methods <p>The “simply less stress” training was conducted as an 1 day compact course in a&#xa0;face-to-face format (<i>N</i> = 10) in a&#xa0;repeated measurements design (pre, post, follow-up) while stress experience, emotional exhaustion, stress processing, knowledge of resources and stressors and job crafting were examined.</p> Results <p>The ANOVA with repeated measurements shows a&#xa0;statistically significant large effect (η² = 0.22) for knowledge about resources between T1 and T2 (F (2.29) = 4.12, <i>p</i> = 0.025). Furthermore, there are trends towards a&#xa0;reduction in stress experience and an increase in self-efficacy. Further qualitative analyses show proactive use of resource-activated techniques and increased self-efficacy and stress resistance among participants.</p> Conclusion <p>The findings can support the future design of stress prevention measures in the dental nurse profession.</p>