Sano, Mako
Shiga, Hiroshi
Article History
Received: 12 May 2021
Accepted: 2 June 2021
First Online: 6 July 2021
Declarations
:
: The authors declare that they have no conflict of interest.
: This study was conducted with the approval of the Ethics Committee of the Faculty of Life and Dentistry, Nippon Dental University (NDU-T2020-31).
: Informed consent was obtained from all subjects after they were received information on the general nature of the study.