Al Zaher, Nancy
Dashash, Mayssoon https://orcid.org/0000-0002-9877-3217
Article History
Received: 9 June 2020
Accepted: 22 December 2020
First Online: 7 January 2021
Ethics approval and consent to participate
: Ethical Approval was obtained from the ethics committee of the Faculty of Dentistry in Damascus University, Syria. In addition, a formal permission was obtained from the Ministry of Education in order to get access to schools and perform the required examinations on children. A written informed consent was obtained from all parents of the study participants.
: Not applicable.
: The authors declare that they have no competing interests.