This study applied problem-based learning(PBL) to clinical dental hygiene subjects for five weeks from March 2023 to 41 third graders in the Department of dental hygiene at University in Busan. According to a survey of students' learning satisfaction and self-directed learning ability according to the PBL curriculum, 51.2% of the respondents answered "not so," and 43.9% answered "very so" and "generally so." According to these results, the problem-solving process is somewhat burdensome and difficult, but after taking the course, I was able to know exactly what I wanted to know and it seems that it can be applied in clinical practice. In addition, the application of PBL to the curriculum is believed to contribute to the acquisition of self-directed learning attitudes in that it is possible to acquire various learning methods in the process of establishing learning goals and plans and solving problems. Therefore, through this study, the application of the PBL method to the curriculum can contribute to increasing learners' interest and learning satisfaction, and to increasing self-directed learning attitude acquisition.