Funding for this research was provided by:
National Natural Science Foundation of China (51705006)
Program for New Clinical Techniques and Therapies of Peking University School and Hospital of Stomatology (PKUSSNCT-19A08)
Open fund of Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials
Article History
Received: 13 August 2020
Accepted: 26 January 2021
First Online: 2 March 2021
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.
: For this type of study, formal consent is not required.