Deghatipour, Marzie http://orcid.org/0000-0001-9792-6704
Ghorbani, Zahra http://orcid.org/0000-0002-3586-8913
Ghanbari, Shahla
Arshi, Shahnam
Ehdayivand, Farnaz
Namdari, Mahshid
Pakkhesal, Mina
Funding for this research was provided by:
Research Institute for Dental Sciences, Shahid Beheshti University of Medical Sciences
Article History
Received: 20 November 2018
Accepted: 31 May 2019
First Online: 17 June 2019
Ethics approval and consent to participate
: This study was approved by the Committee of Ethics in Research Affairs of Dental School, Shahid Beheshti University of Medical sciences. Some participants were illiterate, and it was not possible to get written consent from all people. After explanation of the study objectives, verbal informed consent was obtained for the participation. The Ethical Committee agreed with verbal consent acquisition.
: Not applicable.
: The authors declare that they have no competing interests.