Received: 15 May 2020
Accepted: 23 December 2020
First Online: 14 January 2021
Ethics approval and consent to participate
: The study was approved by the ethics committee of Tehran University of Medical Sciences (IR.TUMS.DENTISTRY.REC.1396.4129). After obtaining the necessary approvals, the objectives of the study and the questionnaire were thoroughly explained to participants, and their written informed consent was obtained for participation in the study. The students voluntarily participated in the study. They were ensured about the confidentiality of their information and filled out the questionnaire anonymously.
: Not applicable.
: The authors declare that they have no competing interests.