Effective teaching behaviors have been studied in various arenas in higher education. However, there is limited research documenting effective teaching behaviors in dentistry and dental hygiene. Our qualitative study attempts to define effective teaching in both the classroom and clinic for dentistry and dental hygiene students. A total of 175 dental and dental hygiene undergraduate students nominated a total of forty instructors for teaching awards, providing a total of 695 qualitative statements reflecting their teaching in two learning contexts: the classroom and the clinic. Seven categories of effective teaching qualities were identified: individual rapport, organization, enthusiasm, learning, group interaction, exams and assignments, and breadth. Based on the frequency of the themes, effective teaching in the classroom was best defined by organization and rapport, whereas in the clinic, rapport was the most frequently described behavior. Moreover, dentistry students perceived enthusiasm as an effective teaching quality more frequently than did dental hygiene students, whereas dental hygiene students provided more responses to learning. These findings can provide guidance in preparing undergraduate dental and dental hygiene educators to enter the teaching environment. The ultimate goal to be achieved from identification of effective teaching qualities, as determined in this study, is improvement in clinical and classroom teaching for dentistry and dental hygiene programs.