Table 1 Topic guide for the interviews

Experiences regarding functioning of DDC

- Can you tell me about how you encountered the DDC service?

- Can you tell me how you experienced the implementation process?

- What expectations did you have beforehand?

- What expectations do you have now? Can you tell me about your expectations for the future?

- How do you experience the administrative preparation for a DDC visit? How do you approach this?

- What’s the impact of a DDC visit on the organisation?

- What’s the impact of DDC on the care processes?

Preferences for professional oral health care for the residents

- What is the ideal scenario for care homes if you want to make professional oral care accessible to residents? Are there multiple scenarios possible?