Funding for this research was provided by:
the Applied Basic Research Project of Science and Technology Department of Sichuan Province (2020YJ0296)
the Innovation and Collaborative Project of Science and Technology Department of Sichuan Province (2019YFH0025)
Received: 6 July 2021
Accepted: 23 November 2021
First Online: 27 December 2021
: This study was approved by the West China Hospital of Stomatology Ethics Committee (WCHSIRB-D-2019-085). All methods were carried out in accordance with relevant guidelines and regulations. Informed consent was obtained from the legal guardians of children involved in the study.
: Not applicable.
: The authors declare no competing of interests.