Dental students’ learning attitudes and perceptions of YouTube as a lecture video hosting platform in a flipped classroom in Korea

The participants were 69 second-year students of Dankook College of Dentistry who attended a clinical periodontology course (males: 52; females: 17) using the YouTube platform to deliver preliminary video lectures in a flipped classroom. The periodontology course ran from September 2 to December 16, 2016. This course contained 1-hour weekly sessions, comprising a total of 14 hours. At the end of the second semester, the students responded to the survey after the final examination using Google Forms with their smartphones in January 2017.