Table 2.

Keywords and search strategy

#	Keywords	*	Search strategy
1	Model	21	#1 OR #2 OR #3 OR #4 OR #5 OR #6 OR #7 OR #8 OR #9 OR #10 OR #11 OR #12 OR #13 OR #14 OR #15 OR # 16 OR #17 OR #18	#21 AND #22
2	Frame
3	Framework
4	Content
5	Context
6	Process
7	Formulation
8	Kingdon
9	Stage heuristic
10	Advocacy coalition
11	Triangle
12	Analysis
13	Evaluation
14	Assessment
15	Actors
16	Political priority
17	Shiffman and Smith
18	Power
19	Oral health	22	#19AND #20
20	Policy making