Funding for this research was provided by:
Jinan Science and Technology Bureau (201805045)
Natural Science Foundation of Shandong Province (ZR2020MH186)
Shandong Provincial Science and Technology Department (2010GSF10270)
Article History
Received: 20 October 2020
Revised: 26 February 2021
Accepted: 7 March 2021
First Online: 22 March 2021
Declarations
:
: Approval was obtained from the ethics committee of Shandong University School of Stomatology. The procedures used in this study adhere to the tenets of the Declaration of Helsinki.Consent to participate: not applicable.
: Not applicable.
: The authors declare no competing interests.