Predoctoral Curricular Revision for Dental Radiographic Interpretation Competence Based on OSCE Results.

Abstract

Teaching radiographic interpretation skills to predoctoral dental students is challenging. The results of an objective structured clinical examination (OSCE) at one U.S. dental school failed to yield expected outcomes for students' radiographic interpretation skills. The purpose of this article is to describe the development of the radiology OSCE and subsequent curricular revisions based on the outcomes. Examples of curricular changes are a series of self-assessed radiographic interpretation cases using the university learning management system. Each case contains a set of four intraoral radiographs and a series of questions. In year 4, an OSCE and final radiographic interpretation competency exam are administered; students are required to pass both exams. OSCE outcomes over a period of six years were used to evaluate the effectiveness of the curricular revisions. A questionnaire developed to capture student perceptions of the curricular changes was administered. The pilot OSCE of 2.9% first attempt pass rates initiated curricular revision. The strongest results to date occurred in 2018 with a 73.3% first attempt pass rate. Results from the questionnaire showed that students reported greater confidence in their interpretation skills when it came to recognizing radiographic errors, dental caries, and periodontal disease/pathologies (65%, 64%, and 57%, respectively). The use of the OSCE for programmatic assessment revealed the need for curricular revision in radiology. Students' participation in the newly revised radiology curriculum resulted in improved student performance and outcomes. This article emphasizes the importance of global and programmatic assessment for assessing student competence along with analysis of how assessment and accompanying data can inform curricular decisions.