Table 1.

Semi-structured interview guideline for expert interviews.

	Semi-structured interview guideline for expert interviews
1	Can you please tell me, in which profession you are working and what your intersection and your experiences thereby are with the topics migration and oral health?
Oral health status:
2	What do you know about the health status of persons with migration background? Do you know about differences and their reasons compared to non-migrants?
3	Which factors are most important for persons with migration background regarding their oral health? (Look?, pain?, money?,…)
4	Did you come across cultural characteristics and habits that can have an impact on oral health?
5	What do you know about the oral health literacy and oral health knowledge of our target group?
Oral health care utilization:
6	What are typical reasons and moments for persons with migration background to visit a dentist?
6.1	And furthermore, how is the participation in oral health prevention programs?
6.2	Can you see differences compared to non-migrants?
6.3	If yes, what are the differences and what could be the underlying reason for those?
7	Due to your knowledge, are persons with migration background facing special barriers towards the use of oral health care and prevention?
7.1	If yes, which are those barriers?
7.2	If no, what do you think is then the reason for differences in oral health status in contrast to non-migrants?
Motivation:
8	How do you experience the motivation of the target group to look deeper into the topic of oral health and care about own oral heath behavior?
9	Do you see precise need and course for action to strengthen this motivation?
Prevention programs:
10	Do you think cultural characteristics of different groups should be considered in oral health prevention programs?
10.1	If yes, which should be considered and how?
10.2	If no, why do you think this is not necessary?