Amini, Fariborz
Asadi, Elmira
Hakimpour, Diana
Rakhshan, Aghdas
Article History
Received: 24 October 2018
Accepted: 15 November 2018
First Online: 15 December 2018
Compliance with Ethical Standards
: The study ethics were approved by the research committee of the university (thesis #25542, ethics code: IR.IAU.DENTAL.REC.1395.7). The study protocol was thoroughly explained to patients, and written informed consents were obtained from them prior to participation in the study.
: The authors declare that they have no conflict of interest.