Funding for this research was provided by:
National Nature Science Foundation of China (81970934, 81873716)
General Research Fund grants from the Research Grants Council of Hong Kong (17112717, 17111619)
Received: 20 November 2020
Accepted: 19 April 2021
First Online: 3 May 2021
: All the surgical procedures were in accordance with the institutional guidelines, and the experimental procedures were approved by the Committee on the use of live animals in Stomatology School of Shandong University, Shandong, China (NO.20190301).
: Not applicable
: The authors declare that they have no competing interests.