Comparison of extramural clinical rotation days: did the Pipeline program make a difference?

Extramural clinical rotations are implemented by dental schools for a combination of clinical and didactic or behavioral goals. In the United States, the Pipeline, Profession, and Practice: Community-Based Dental Education program was launched to increase the number of underrepresented minority students who are recruited and retained in dental education, to expand the dental curriculum in cultural competence, and to incorporate community-based extramural rotations into the dental schools' clinical curriculum. The objective of this study was to conduct an impact analysis regarding the change in number of extramural clinical rotation weeks for Pipeline and non-Pipeline program students over the time period of 2003 to 2007. National data from the American Dental Education Association's senior survey and other secondary sources were used to determine what student, school, and community characteristics are associated with a difference in the student report of the number of required weeks they expect to spend during their last year in dental school providing care at extramural clinic settings. Students reported a mean of 7.2 weeks for Pipeline students and 6.4 weeks for non-Pipeline students in 2003, increasing to 8.2 weeks for Pipeline students and 6.6 weeks for non-Pipeline students (p<0.05) in 2007. The multivariable model showed the Pipeline program increased significantly the number of rotational weeks reported by students. Three other variables significantly increased rotation weeks: 1) a lower baseline number of reported weeks in community rotations; 2) a lower level of debt student reported upon graduation; and 3) student reports of a higher orientation toward service to others as a reason to enter dentistry.