Deghatipour, Marzie http://orcid.org/0000-0001-9792-6704
Ghorbani, Zahra http://orcid.org/0000-0002-3586-8913
Mokhlesi, Amir Hossein http://orcid.org/0000-0003-1348-2507
Ghanbari, Shahla
Namdari, Mahshid
Article History
Received: 27 April 2021
Accepted: 30 November 2021
First Online: 10 December 2021
Declarations
:
: We confirm that all methods were performed in accordance with the relevant guidelines and regulations. This study was approved by the Committee of Ethics in Research Affairs of Dental School, Shahid Beheshti University of Medical sciences (code: IR.SBMU.DRC.REC.1397.003). After explanation of the study objectives, an informed consent was obtained for the participation. One of the mothers at the baseline of study was under 16 years old whose consent form was signed by her father as her legal guardian according the local rules.
: Not applicable.
: The authors declare that they have no competing interests.