148 Chapter 5 are often not capable of improving their oral care. This is in line with the literature [19,49] The MHNs suggested the development of a wide range of different interventions for the MHNs to practice oral health in patients with a psychotic disorder, including interventions focusing on improving knowledge, improving skills, practical tools, and improving motivation in patients. For MHNs with personas like Monica, Julia, and Paul (who reported a need for educational interventions to increase knowledge and awareness, as well as practical skills regarding oral health in their patient group), oral health training should be developed. A pre–posttest and a scoping review [11] showed that educational interventions were effective at improving oral health knowledge in MHNs of patients with SMI. The results of these studies are promising and can serve as a rationale for the development of educational interventions in the future. Furthermore, an appropriate method needs to be found to substantiate, disclose, and valorize good interventions. MHNs like Anna, Julia, and Monica need more information on oral health (e.g., the influence of different anti-psychotics on oral health for MHNs like Anna and Julia, and information about the advantages and disadvantages of oral hygiene for Monica); it was suggested that leaflets and posters could be tools to provide oral care information to MHNs and patients with a psychotic disorder. A systematic review of oral health promotion in a general community setting showed that traditional health promotion tools, such as leaflets and posters, are useful, especially for adults [19]. MHNs like Julia need additional practical information (e.g., an example of how to brush). This systematic review was focused on the effectiveness of interventions; the content (e.g., topics or development in co-creation) of oral health promotion was not known. Therefore, oral health promotion tools, such as leaflets and posters, should be developed for patients with a psychotic disorder in co-creation with MHNs. Leaflets and posters are more effective when combined with other media, such as videos [50], and thus, the suggested 2 min videos could be supplementary to such tools. Patients and MHNs can profit from these short videos by embedding these videos as micro-learning intervention in a mobile application [51].
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