In 2009, the Ministry of Education, Culture, Sports, Science and Technology launched its "Program for Promoting University Education and Student Support, Theme A: Program for Promoting University Education Reform". The ministry's stated aims were to 1) enhance student training centered on the needs of the individual patient; 2) improve their ability to make comprehensive diagnosis and treatment plans; and 3) instill high ethical standards and good communication skills. One of the main pillars of this project was to establish an educational organization aimed at encouraging public participation, the "Patient Community". The aim was to have members of this community roleplay patients in the Communication Studies component of the 1st-4th years of dental school. It was hoped that they would be able to respond to the students in a more realistic manner than simulated patients. Here, the number of Patient Community members and number who attended Communication Studies classes in 2010, 2011, 2012, and 2014 were investigated. The results showed that the number registered in the Patient Community increased annually, as did the number participating in Communication Studies classes, which rose in accordance with the number of classes held. No difference was observed in the number of attendees per Communication Studies class by grade (years 1-4). The number of members never attending Community Studies classes increased annually, although some members repeatedly attended. These findings suggest that the members who regularly participate tend to remain the same.