153 A Human-Centered Design Approach to Develop Oral Health Nursing Interventions in Patients with a Psychotic Disorder created four personas, data saturation and member checking showed that this was enough to give an answer on the research question in our population. Although we are confident that these profiles can be widely recognized, it is possible that we have missed profiles. However, these personas give an indication for the next step. The methods used in this study did not lead to the degree of empathizing that is required to achieve a greater understanding of the behavioral components of this problem, namely, professional leadership and taking responsibility. Further research regarding this behavioral component is required and should take professional leadership into account. For this, it would be preferred to use more generative methods (e.g., by deploying scenarios, having MHNs do things, or through observations) to get MHNs to think even more concretely about how they would act in each situation. Furthermore, the interventions suggested by MHNs were rather basic and the MHNs did not go beyond general interventions. The thoroughness of this research may have limited the speed of design-oriented research, but it was important to find out the content of these interventions. However, if we want to design effective, innovative interventions, it will be important to rely on MHNs and patients with a psychotic disorder in co-creation with a designer (educational, communicational) to broaden the scope in interventions. Conclusions When caring for patients with a psychotic disorder, physical care underpins psychosis care, and mental health professionals need to consider oral health care as an essential role in their daily tasks and provide necessary nursing support. MHNs need knowledge and awareness, screening forms, posters and leaflets, and access to short videos about oral care practices. MHNs need oral health psychoeducation and posters on oral health care to improve oral health in patients with a psychotic disorder. However, the development of interventions alone will not solve this problem. It is important to empower nurses and make sure that they collectively feel responsible for what is part of their job. The validated personas in this study can serve as an empathic handover while developing a toolkit with different interventions for MHNs and patients with a psychotic disorder. The next step in the HCD process should be, in co-creation 5
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