Table 1.

Inclusion and exclusion criteria

Criterion	Inclusion	Exclusion
Time period	January 2007 to September 2014	Any study outside these dates
Language	English	Non-English
Type of article	Original research article published in a peer reviewed journal that provides a description of a tool. The article may then proceed to use the tool or report of instrument or tool	Any publication that was not original research, peer-reviewed journal article and/or unpublished. For example, PhD theses and reports were excluded. Articles that do not report using a tool or instrument were also excluded.
Study focus	Oral or dental health literacy measurement tools or instruments	No reference to oral health literacy tools or instruments
Geographical area of interest	International studies including those with specific cultural groups	Nil
Setting	Any	Nil