Liu, Bei
Ouyang, Xiangying http://orcid.org/0000-0003-3703-0847
Kang, Jun
Zhou, Shuangying
Suo, Chao
Xu, Lingqiao
Liu, Jianru
Liu, Wenyi
Funding for this research was provided by:
Beijing Municipal Commission of Science and Technology (Z141107002514059)
Article History
Received: 1 May 2021
Accepted: 6 August 2021
First Online: 20 August 2021
Declarations
:
: The Ethics Committee of Peking University School and Hospital of Stomatology approved the study protocol (PKUSSIRB-2012080). The trial was registered at the Chinese Clinical Trial Registry (ChiCTR2100043272). All procedures involving human participants were performed in accordance with the ethical principles of the institutional research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: All participants included in the study signed the informed consent.
: The authors declare no competing interests.