Funding for this research was provided by:
Yonsei University College of Dentistry (2-2015-0042)
Article History
Received: 23 December 2020
Accepted: 12 March 2021
First Online: 10 May 2021
Declarations
:
: This research was approved by the Ethics Committee of the Yonsei University Dental Hospital (IRB No. 2-2015-0042). Each participant was informed about the study and signed an informed consent form.
: All authors gave final approval and agree to be accountable for all aspects of the work.
: Bada Choi, Ye Chan Lee, Kyung Chul Oh, and Jae Hoon Lee declare that they have no competing interests.