Various organizations offer online continuing dental education (CDE) courses. While previous investigations focused on objective measures to determine the quality of the courses, this exploratory study evaluates the participants' experience with them. We surveyed 436 past course participants from nine online CDE courses (courses provided by six organizations) regarding their experience with the courses taken. Our analysis of the 169 responses (38.8 percent response rate) focuses on how the participants of online CDE courses can be characterized; whether the participants' expectations were met by the courses; how the participants evaluated the content of the courses; why they enrolled; and the participants' experience of the online environment. The results suggest that online CDE courses partially meet the needs and expectations of dental professionals. The lack of communication with peers and instructors as well as the fact that courses appeared outdated were main reasons for dissatisfaction. Most of the participants accomplished their goals of gaining new knowledge and deepening their understanding of the subject. Based on this evaluation, future courses can be tailored to meet more closely the expectations and needs of dental professionals.