Funding for this research was provided by:
Grants-in Aid for Scientific Research ((C) #24593130, (C) #19K10157)
Received: 14 December 2021
Accepted: 21 June 2022
First Online: 28 June 2022
: All procedures performed as part of this study that involved human participants were performed in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. This study was approved by the Health Sciences University of Hokkaido Dental Ethics Review Committee (certificate numbers 97, 98, and 103). All subjects agreed to participate in this study and provided written informed consent before participating in the study.
: Not applicable.
: The authors declare that they have no competing interests.