Matsuda, Shinpei
Goi, Takanori
Yoshida, Yoshio
Yoshimura, Hitoshi
Article History
Received: 22 August 2020
Accepted: 22 December 2020
First Online: 6 January 2021
Ethics approval and consent to participate
: This study was approved by the Institutional Research Board (Ethical Committee of University of Fukui, Faculty of Medical Sciences; No. 20190082). Verbal informed consent was obtained from all participants at the time of dental examinations at the Department of Dentistry and Oral Surgery at the University of Fukui Hospital. Ethical Committee of University of Fukui, Faculty of Medical Sciences approved this procedure because the information of this retrospective study have been released to the public.
: Not applicable. Identifying images or other personal or clinical details of participants were not presented in this study.
: This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.