Development of the Oral Health Literacy Profile (OHLP)-Psychometric properties of the oral health and dental health system knowledge scales.

Objectives: Current oral health literacy (OHL) instruments vary in focus, methodology, administration time and burden. The widely used word recognition tests fail to encompass important OHL domains, while others exceed time frames for use in practical settings, require an interviewer or mainly measure self-assessments. This paper describes the development of the Oral Health Literacy Profile (OHLP), introduces its components and evaluates the psychometric properties of its two core modules, the knowledge tests.